Yes, its a perfect fit, because as Paul stated the "mystery of iniquity" was already at work in his time.
Many things have been around for that long... one needs thus to consider more...
The 'mystery of iniquity' is simply that mankind in the depths of our hearts,wants only to love and be loved [as God and Jesus instruct Israel and the saints to do] , it is the natural 'law' of mankind to love and thus obey Jesus and God, but so many do not do so that many more end up loving just one person, or loving just their family, or loving just those who love them, or loving one group who agree with them, or loving one country ...and so on...
that is the mystery about iniquity, it is unnatural to mankind, we have to lie to our own self to be unloving, to sin...
Clearly that is also the power of the force against Jesus' plan to redeem all sinners back to the love they were born with in their hearts [there is no 'original sin' according to scripture, no-one is responsible for the sin of any other , that would be unjust in extreme and is explicitly denied by scripture :-
Ezek 18:20...The son shall
not bear the iniquity of the father, neither shall the father bear the iniquity of the son: the righteousness of the righteous shall be upon him, and the wickedness of the wicked shall be upon him.
2 Chronicles 25:4 .... every man shall die for
his own sin.
Deuteronomy 24:16 The fathers shall not be put to death for the children, neither shall the children be put to death for the fathers: every man shall be put to death for
his own sin.
[Adam did not even sin by eating the fruit, he
did not know good from evil until after eating the fruit, and so was
innocent of the sin imputed to him by much relighious tradition . A point that Paul underlines:-
Romans 7:8 But sin, taking occasion by the commandment, wrought in me all manner of concupiscence. For
without the law sin was dead.
]
So is the mystery of iniquity denying Jesus AND 'in place of Christ' [the Greek meaning of 'antichristos'] in all the world bar those few who cease from sin and become saints, as Jesus describes [Rev 13:3-10] the final climax of power of the antichrist before his mortal death at the hand of strangers [Ezekiel 28:10] at Jesus' return?
In other words will all modern christian sinners worship the false christ rather than the Jesus of scripture by the time Jesus returns... it seems very plausible that they will because the image of Christ in religion is far from the Christ [Messiah come to unite Israel into one united holy nation of priests and kings ruling over the gentiles] that is described in OT and NT scripture.
Hmmm... yes, it fits rather well, but will never be accepted by religious tradition of Jewish and Christian sinners, led by sinners ,not by saints [As Jesus and the saints say , only those
few who depart from sin will first [Matt 7:14] be taken, the
many are taken later [Rev 7:9-10]
The mystery of iniquity is not resolved in this life , Satan is resurrected from death along with everyone else dead in hell , freed from sin in death , to have their works judged in the kingdom of God [for which the few have been readied first to rule and minister as perfectly as Jesus]
Revelation 20:13 And the sea gave up the dead which were in it; and death and
hell delivered up the dead which were in them: and they were judged every man
according to their works.
Jesus shows us how wrong religion is already, hell cannot hold onto the dead ,nor is there any more point in torturing a dead person any more than flogging a dead horse, and
the many are judged by works after death , not according to their confusion by the mystery of iniquity in this life [on which sinners are supposed to be better than other sinners if they believe the words of this or that sinner in place of
every word of God .
Romans 6:7 For he that is dead is
freed from sin.
It seems rather convincing then, the manifestation of Satan is the antichrist, by the power of the [mystery of ] iniquity over men , the denial of love even in religion spreads eventually to whole world ,just like yeast through rising bread leavens the whole , Jesus parable and Jesus' revelation :-
Rev 13:3 ... and
all the world wondered after the beast.
4 And they
worshipped the dragon which gave power unto the beast: and they worshipped the beast, saying, Who is like unto the beast?
who is able to make war with him?
Clearly the few who gave up sinning to obey Jesus as Lord hold out until Jesus returns, but only just ... it turns out that sinners are all sinners, whether they are religious or not , all are rejected by Jesus at his return, and it is indeed iniquity that denies Christ and worships a false image instead...
Matthew 7:23 [Jesus , speaking of his return] And then will I profess unto them,
I never knew you: depart from me,
ye that work iniquity.
2 Timothy 2:19 Nevertheless
the foundation of God standeth sure, having this seal, The Lord knoweth them that are his. And, Let
every one that nameth the name of Christ
depart from iniquity.
Proverbs 16:6 By mercy and truth iniquity is purged: and by the fear of the LORD
men depart from evil.