Haute cuisine is nice if you're into it, and either a massive joke or torture if you aren't into it. I wouldn't expect haute cuisine at a wedding, and I would likely have to go out and eat afterwards because I'd be massively unsatisfied. I'd try not to leave the party early, but that would honestly depend on how recently I ate beforehand.

Congrats on the upcoming wedding, but as long as changing the caterers doesn't set you back more financially...I'm not gonna lie, you'll VERY likely have happier guests with a more robust cuisine.