There are problems with that assumption. First -God does all that He is pleased to do.
Lazarus come forth. I suppose you think he didn't die again by your reasoning "die once" can't be over ruled by Gods own authority.
The facts are that the two witnesses as testified to in Rev 11 were not identified by God. I don't think Enoch and Elijah will suddenly appear on earth again in bodies of the dust of the earth just so they can die once. They pleased God and God took them alive to heaven.
Rather I think two from among the living in those days will be appointed by God. More than likely set aside at birth for Gods task just as Paul was.
I would agree Lazarus was used in a parable pointing to the last day under the Sun when all believers will be raised and receive their new incorruptible bodies. all die not receiving it.(Hebrew 11:38)
It would seem Peter our brother in the Lord was seduced by that kind of delusion every time he denied Christ.
When a vision was given to represent the work of the father and Son working .Peter desired to make tabernacles as if it was flesh and blood. using Moses and Elijah who did represent all things written in the law and the prophets the perfect law. .The living abiding word of God.
On one occasion right after being reinstated . Peter got his eyes off of Jesus and looked a John and again walked by sight after the temporal things seen . He went to town and started a oral tradition of the fathers saying. . Jesus said John would not experience the first death.
Jesus worked and corrected the lie as a oral tradition of men, And said if every time he had to do the work of dispelling the oral traditions of men .The whole world would not be able to hold the books that could be written.
John21:21-25 Peter having
seen this one, saith to Jesus, `Lord, and what of
this one?' Jesus saith to him, `If him I will to remain till I come, what -- to thee? be thou following me.'
This word, therefore, went forth to the brethren that
that disciple doth not die, yet Jesus
did not say to him, that he doth not die, but, `If him I will to remain till I come, what -- to thee?' this is the disciple who is testifying concerning these things, and he wrote these things, and we have known that his testimony is true. And there are also many other things -- as
many as Jesus did -- which, if
they may be written one by one, not even
the world itself I think to have place for the books written.
Amen.
One warning against the oral traditions of men called fathers would seem all that is necessary .