2. Basing a judgement about one's moral compass on a rumor about firing half the company (even if it's true) and blog post is a classic example of a Fundamental attribution error.
1) Was the staff fire or not. That would be pretty easy to check. You instead of saying this is a rumor would have made a better argument by actually checking then coming back and posting "yeah well actually it was exactly 40% that was fired not 50% like he mentioned".