Unlike most of the other Easter eggs on this list, the insult was caught by censors before the issue went on sale, but not before it was printed, which meant that they had to do a full recall on the issue and destroy every copy, which is a pretty rare occurrence in the comic book world (known to have happened fewer than a dozen times, ever).
Milgrom was fired over it, and his contract was terminated. But a few weeks later, the people at Marvel seemed to realize, "Yeah, Harras was an asshole. Nice! Come on back here." And they hired Milgrom back.