He does not come across as vengeful, just disappointed, appearing to have just genuinely wanted to have a conversation about what he say as flaw/injustice in the way Google approached hiring.
He is well spoken for the most part and decent looking, that in itself will give this story legs and the media will want to have him on.
Google really made a mistake in their approach to this. I believe that if they had just spoken to him and heard him out in the beginning after he submitted his memo to their diversity department this never would have happened. As another poster said, they could even have just paid him off and have had him sign an NDA to go away.
This is a monumental failure of PR on Googles part.