That's mainly because Grandpa Al Lewis was an awesome ridiculous old man who really didn't give a shit, as long as the money was green. Those other fuckers may have been worried about their dignity, but not Grandpa Al. He was an old school trouper.
I can't believe McDonald's tried to make some hullabaloo about a freaking hamburger with two patties. It's not even their ridiculous Big Mac, which is pretty much the same thing with another half of a bun thrown on.
It's only at participating locations. Obviously it was so outrageous in 1988 that corporate couldn't even talk some individual chains into carrying it. What a decade.