Are now telling us that the APOSTLE PAUL did not accurately and faithfully describe the definitive HERESY of Hymenaeus and Philetus? Ridiculous.Paul believed in the resurrection of the dead (body), which is why he wrote that those who believed in only a spiritual resurrection were in error. That is why those heretics said that the resurrection had already happened; they were not referring to a bodily resurrection because they didn't believe in one, just like the Sadducees didn't.
You are also telling us that Paul misunderstood the situation, and was in error as he was WARNING believers about these heretics and their heresies? Absolutely ridiculous.
No, but rather Paul is calling out as heretics anyone who DENIES the bodily resurrection at the RAPTURE as a certain FUTURE reality.
Similarly, in 2Thes 2, Paul likewise debunks the heretics out who are promoting the false doctrine that the Church was suffering in the midst of the end-time TRIBULATION (the DOTL), rather than being raptured before it ever happens! These heretics lied to the Thessalonians, telling them that they had missed the RAPTURE.
Essentially the same heresy as Hymenaeus and Philetus was spreading.