As I told allend, this is a false dichotomy. They could be writing in a style that you misinterpret. Or, they could simply be wrong. Sincerely repeating something you believe to be true, but which is in fact incorrect, is not a lie. And none of this argues against their love for God and desire to do His will as they understand it.
If the bible is agreeably reliably interpreted in only a few of the stories presented, but they are not true stories, then we are all the silliest of fools.
Forgive me if the subject has been previously covered; but, I fail to see whether Peter was ever in Rome is germane to the validity of the Papacy. Peter could been in Rome. He could have been the first (or second) Bishop of Rome. He could have died in Rome. Any, or all, of this could be true and it still doesn't have any bearing on whether Christ actually established a Papacy. Does it?