Any match-ending move that causes a flying screen does that, that is what “triggers” the falling tower. It’s not random or anything. It’s been known about for awhile.
If you play a lot of top tier, I could understand not running into this very much, only common move I can think of offhand is Captain Sword - and he’s not really “top tier” so much as “popular assist”. My characters (Jugg, Hulk) have a number of moves that qualify, I do (did) it all the time.
There used to be some other thread about obscure “easter egg” type stuff for Marvel; probably got purged. Do a search for “Sonson” and “mountain” if you care enough, I remember somebody saying what some rock says on a certain stage or something. You just might dig it up.