"IMO, joints like McDonalds, BK, etc. shouldn't even do the special order burgers."
That's what you said. That's pretty plain on its face that you think every burger joint should be the cattle call, you take what you're given. No choice, just get in, order off the menu, and GTFO.
That's how McDonald's operated for decades. If you asked for a burger without onions, you were told to scrape them off yourself. And that's what led, in part, to the rise of Burger King and Wendy's as serious competitors to MD's.
Hold the pickles, hold the lettuce, special orders, don't upset us... Remember that jingle? BKs way of saying FU MickeyD's!