Hoeg Law spoke about that EU dude's tweet, and it was a lot worse than expected, I wonder if Microsoft will use it as evidence against EC, Lol. Hoeg said it would be useful if Microsoft appeals against their decision (if they decide to do so). He spoke on personal bias and made it sound like he was a part of the competition authority, it doesn't matter now if he isn't, there is reasonable doubt that he would know stuff and he can't just claim personal opinion when talking on behalf of a company he works at.
Basically, all about optics, he made a mission statement by saying "The Commission is working to ensure" and didn't say "As a PlayStation fan, I hope" which is a credibility issue and makes it look like he's speaking on behalf of the EC and they're prejudging a decision before Phase 2. It also calls into question what he knows due to his ranking in the agency which makes it likely that he does know something, especially since he was formerly in that department.