The core developers, Gregory, Pieter, Luke and Matt are involved in a company Blockstream:
https://www.blockstream.com/team/ .
Obviously they want Blockstream to be successful. Please tell me how Gavin is biased and the others aren't.

There are two sides to (almost) each story, and there definitely are hidden agendas involved here.
One of the biggest problem of people is that they only accept what they were provided with. Medias exploit this easily.
BTW, where did Gavin threatens to quit Bitcoin development? And isn't this really Gavin's fork? The title is misleading.