Unfortunately boys DO turn down shidduchim for looks (if the pictures even get past their moms). Often, so do girls, which is why I believe a blind date should be a double-blind, where neither party knows what the other one looks like in advance.
I think both should wear blindfolds on the actual dates until 4th date. It has the added benefit that you don’t need to spend money on seltzer at a nice lounge because can’t see it.