I haven't agreed with his opinions on games in a long time so I'm fine with this.
Gotta ramble on this a bit, because I think it's important. It seems like disagreement should be a pretty bad reason to be happy to see any critic go. After all, disagreement is great. Unanimity is rarely unanimous and more often just means minority opinions are being ignored or silenced. Ok, but now enter the gaming world. Most game publishers are unabashedly ignorant of games. Their entire business is obviously about publishing games that gamers want, yet they have no idea what gamers want as the people running these companies tend to have little to no interest in games themselves. So they rely on outside sources and hindsight. One of those outside sources are critics. Especially in the early 2000s game publishers started to latch onto the correlation between high metacritic numbers and high sales. So enter mock reviews, which may very well be what Sessler's new venture is about. A mock review is where a publisher hires a reviewer to privately review their game. If the score is low the reviewer tells them how they could help improve it. The reason is that in the past there was a strong correlation between high metacritic and high sales. The logic is pretty simple. Go to the source of the high reviews, make your game for them, wham bam thank you 20 million sales. Ok, but now we have a problem. Suddenly games aren't being made for gamers, but for game critics. So having critics around who you tend to routinely disagree with presents a bit of a problem.
Movies weren't made to get two thumbs up from Siskel and Ebert so what they had to say had no real bearing on what was being made. But games are being made to get high ratings from reviewers. If you don't tend to agree with a certain reviewer then his reviews are detrimental to the sort of games you enjoy getting published. I still don't personally think that's enough of a reason to be happy for a reviewer to get out of the industry, but on the other hand there's a lot more reasonable motivation behind being happy when those you disagree with leave this industry than just burn the dissenters.