I think it's because of the frustration he expressed with Sony Japan because he wanted them to push more towards social games rather than online games. Japan = Sony's mom, and you don't insult anyones mom.
I'm pretty sure many of you don't remember or have ever heard of this, but a few years back a certain pitcher (Billy Wagner) from the Houston Astros was all of the sudden fired*ahem*traded for some pitchers that weren't even subpar at best. The public wondered why, but when people payed attention, they realized it happened only a day after he expressed his frustration with the team's owner for not spending a bit more money on the team. The team's owner is known for being this meritless, money-grubbing bastard that's trying to maintain a prestige rather than appeal to the baseball team and its fans.
I don't know, but I wouldn't doubt the situation with Phil may be similar to Wagner's situation.
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