That's not a bad rule of thumb, but it's also easier to get dry, poorly seasoned rice, mushy fish, overdone or poorly done sauce and toppings combinations, and >1 day old uni than I'd really like at a lot of places.

Your advice makes sense when your local options are good enough, but I don't think you're actually arguing that quality doesn't matter -- only that beyond a certain point the additional discernment isn't valuable.