Calling people monkeys and losers doesn't particularly tickle my sense of humor. If anything, it reminds me of Linus Torvalds from his toxic ages. Fortunately, he has matured well. Andrew seems like a smart guy, I hope that he will have the emotional maturity to realize that you can be no-bullshit and straight to the point without the need to call people names.

pretty sure there was no humor there, just looks poorly upon the author

It sure reads like it was meant satirically to me. Whether one finds it funny or offensive is up to the reader though, and I assume the GP is basically saying an article should be written such that "or offensive" isn't reasonably on the table.

He shot the wrong entity.