No, he didn’t do what he could to save it. He did kinda say "screw you, we're doing this my way" to Rian Johnson, but his way turned out to be reminiscent of a 12-year-old kid playing with his Star Wars action figures. If Rian Johnson had been in charge, episode 9 would have turned out pretty crappy, but it would probably be better than what we got.
On the bright side, they have to pay for every single ad they send you, so as long as you never contribute to their revenue in any way, they will have wasted that money. (I think they might even have to pay more if you actually click on the ad, so if you're really committed to wasting their money...)
I don't know, I feel like the way it collapsed looks very realistic. The part that makes me think it's AI is the people; if you look closely there appears to be a tiny bit of weirdness in how they move, but more importantly, the fact that none of them turn around to run even as the building collapses on them.
