The bit about internal rumblings at Apple I definitely read from him but the rest is just things we saw play out publicly over the past decade.

Gruber does not have a monopoly on disliking Alan Dye’s work. On the contrary, I never met anyone who knew UI design was a thing that liked what he did.

When you’re using a tool for 40 years and someone who really has no clue gets in charge, starts breaking basic functionality for no good reason and affecting your day to day work, it’s not hard to get infuriated.