Yes, excuse -- you need one to account for making stuff up ("the staff didn't respect him") based on nothing but your own irrational animus, aka bigotry.

Don't change the subject. Blathering in five paragraphs about irrelevancies does not justify your bogus and malicious assertion.

Here is a free clue that might help you understand things, or not: in my personal experience apart from Mozilla, both at past jobs and from reading the news, when someone exits under duress at high level, a statement of few, vague, and neutral-sounding words is often part of the deal.