Let's Be Honest - Carpenter Sacrificed a Lot
...of logic, continuity and "rules" in order to create paranoia and dread. The fact there's so many theories, options and schools of thoughts on various topics and details means some things simply don't add up. The fact that even after 34 years we know *beep* is both the result of both careful writing/directing/editing and deliberate omissions where (IMO) Carpenter just said "*beep* it" during the filming and post-production.
TLDR, it's still one of my very favorite films ever simply due to the unmatched isolation terror atmosphere, but it's not some high-end masterpiece where just about every puzzle is carefuly put there.