So I got some feedback from management, and it seems like I was wrong about the bathroom situation. I'm glad! It has at least three bathrooms on site. Our waitress only knew about the one, so that's what I was going on. And they tell me they also have larger seats, if you ask. Personally, I wish they'd just look at us and go, "oh, they'll probably be more comfortable in the larger seats" without anyone asking. Who knows to request a bigger seat when they were pretty much all the same size (at least in the room we were in)? What do you say? Two for the fat seats! Large freakin' mammals, party of three! Or perhaps, lead me to the biggest seat in the house! Awkward....
I do appreciate my concerns being addressed, though. Since they took the time to reply, I am taking time to correct my initial review.