This. There's a reason the defacto way to keep running post logout was named "nohup". This wasn't some deep dark unknown secret behaviour that was broken.
It was called that because connected pty devices could hang up. Whether hanging up due to intentional logout or actually hanging up the modem was, and is, left as an exercise to the user. Unless we try to disambiguate it via login/pty manager programs, that is.
Because 1) maintainer can be overloaded, so (s)he will stick to defaults, 2) maintainer needs a logical reason to change default setting to something else, which is not obvious in most cases. Maintainer is not a QA team.
