The rule about triviality and standing out from unassisted play is about acceptability of games, not movies. It's logical suicide to declare a game trivial retroactively, after there was already a movie that clearly showed the game was fine, and then to try solving the artificial problems that come arise. When Pinocchio happened
I didn't dig deep enough to realize this, now it's kinda clear.
The submission was beating the unassisted records when it was created, and there's no rule saying "if you get tied by RTA before you're published, you're rejected". Getting beaten by RTA during that period would indeed be a problem, because it's known improvements. But so far there are none.
This improvement doesn't stand out from unassisted speedrun anymore, but once again, it's a game requirement, not a movie requirement. Let alone legitimate improvements to published movies.