The communities for these games decide what categories are run, so if lots of people agree that e.g. memory corruption is no fun they can either restrict it to a special category or forbid it outright.
It's pretty rare to have games where only the deeply technical memory glitch speed runs are a thing, much more often that's either a category few bother with or its forbidden.
It's more common in TAS because a TAS can manipulate things to a state where it's hilarious. e.g the increasingly deranged "correct" answers to TASbot brain age.