I’m sure we must have sent something back some time or other, but it’s been extremely rare (& probably not well done 😂). Even when, maybe 25 years ago, my wife ordered an arugula salad & received a Boston/iceberg lettuce mix. She pointed it out to the waitress, who, without any trace of understanding, replied “we ran out of arugula”. But it didn’t go back. Neither did we.
eta: just realized that corked wine is the exception here. Lots of times we’ve sent that back.