Is there room for anything else on Tinder? Or other dating apps? Do people on those sites care? Debatable. Obviously looks are not the only factor in a relationship, but they are a major one, especially in longer term relationships, and are often the only factor.

Evidence from 2014 craigslist personals: https://incels.wiki/images/6/61/Juggernaut_test_2014.jpg

Looks unmatched couples are unstable and the better looking partner is at elevated risk of monkey branching.