No, preterism honors all of Christ's and the apostle's time statements and does not distort them, conform them, and deny them in their pursuit of futurism, premillennialism, and dispensationalism.
Here is a bible search on the word "mystery":
Mystery (31 Occurrences)
Mark 4:11 He said to them, "To you is given the mystery of the Kingdom of God, but to those who are outside, all things are done in parables,
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Luke 18:34 Nothing of this did they understand. The words were a mystery to them, nor could they see what He meant.
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Romans 11:25 For I don't desire you to be ignorant, brothers, of this mystery, so that you won't be wise in your own conceits, that a partial hardening has happened to Israel, until the fullness of the Gentiles has come in,
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Romans 14:23 But he who doubts is condemned if he eats, because it isn't of faith; and whatever is not of faith is sin. (24) Now to him who is able to establish you according to my Good News and the preaching of Jesus Christ, according to the revelation of the mystery which has been kept secret through long ages, (25) but now is revealed, and by the Scriptures of the prophets, according to the commandment of the eternal God, is made known for obedience of faith to all the nations; (26) to the only wise God, through Jesus Christ, to whom be the glory forever! Amen.
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Romans 16:25 Now to him that is of power to stablish you according to my gospel, and the preaching of Jesus Christ, according to the revelation of the mystery, which was kept secret since the world began,
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1 Corinthians 2:7 But we speak God's wisdom in a mystery, the wisdom that has been hidden, which God foreordained before the worlds for our glory,
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1 Corinthians 15:51 Behold, I tell you a mystery. We will not all sleep, but we will all be changed,
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Ephesians 1:9 making known to us the mystery of his will, according to his good pleasure which he purposed in him
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Ephesians 3:3 how that by revelation the mystery was made known to me, as I wrote before in few words,
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Ephesians 3:4 by which, when you read, you can perceive my understanding in the mystery of Christ;
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Ephesians 3:9 and to make all men see what is the administration of the mystery which for ages has been hidden in God, who created all things through Jesus Christ;
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Ephesians 5:32 This mystery is great, but I speak concerning Christ and of the assembly.
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Ephesians 6:19 on my behalf, that utterance may be given to me in opening my mouth, to make known with boldness the mystery of the Good News,
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Colossians 1:26 the mystery which has been hidden for ages and generations. But now it has been revealed to his saints, Paul's Second Letter to the Thessalonians
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Colossians 1:27 to whom God was pleased to make known what are the riches of the glory of this mystery among the Gentiles, which is Christ in you, the hope of glory;
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Colossians 2:2 that their hearts may be comforted, they being knit together in love, and gaining all riches of the full assurance of understanding, that they may know the mystery of God, both of the Father and of Christ,
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Colossians 4:3 praying together for us also, that God may open to us a door for the word, to speak the mystery of Christ, for which I am also in bonds;
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2 Thessalonians 2:7 For the mystery of lawlessness already works. Only there is one who restrains now, until he is taken out of the way.
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1 Timothy 3:9 holding the mystery of the faith in a pure conscience.
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1 Timothy 3:16 Without controversy, the mystery of godliness is great: God was revealed in the flesh, justified in the spirit, seen by angels, preached among the nations, believed on in the world, and received up in glory.
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Revelation 1:20 the mystery of the seven stars which you saw in my right hand, and the seven golden lampstands. The seven stars are the angels of the seven assemblies. The seven lampstands are seven assemblies.
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Revelation 10:7 but in the days of the voice of the seventh angel, when he is about to sound, then the mystery of God is finished, as he declared to his servants, the prophets.
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Revelation 17:5 And on her forehead a name was written, "MYSTERY, BABYLON THE GREAT, THE MOTHER OF THE PROSTITUTES AND OF THE ABOMINATIONS OF THE EARTH."
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Revelation 17:7 The angel said to me, "Why do you wonder? I will tell you the mystery of the woman, and of the beast that carries her, which has the seven heads and the ten horns.
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Mystery (31 Occurrences)