Its a healthy skepticism but historically speaking rockstar hasn't toyed like that in the past. This trailer is in line with previous rockstar releases - they'll rarely go full "gameplay mode" (camera behind the character), but still showing footage from the game engine.
The leak three years ago, showing 2019 state, basically confirmed what gameplay looked like this is not far off.
I believe I read Bruno Famin had the record previously, so yeah you're probably right. Alpine on a roll.