Ma doesn't look bad at all. It looks familiar & fun, but not bad. And you're really judging the trailer as a source for maze content? That's dumb.
That is also the mindset of how you end up with movie marketing showing the entire movie before it even comes out. Good editing for a trailer isn't going to show you
Also, just because Orlando is unlikely to have Blumhouse 3.0, doesn't mean Hollywood won't get it. Hell, for all we know it could be a Blumhouse Double-Feature of Happy Death Day 1 & 2 (which i'd be okay with as long as they made up for the crappy budget-cut section we got in 2017).