They're designed for people of average (male) height, like everything else from default seatbelt position to doorways. Sounds like yet another tall person complaint to add to the pile.
In any case, I find them comfortable (probably because I'm average height lmao) and I like to take my time ordering to combine the best deals possible without having a cashier staring waiting on me so they can go take care of all the other things that McDs overworks their employees with.
IME (I've worked FF before) you "Fuck these machines" people generally trend towards annoying karen-type and take FOREVER ordering.