Better/additional info here: https://www.gamesradar.com/games/third-person-shooter/helldivers-2-community-manager-seemingly-fired-after-encouraging-negative-reviews-over-now-canceled-psn-mandate-i-knew-i-was-taking-a-risk-with-what-i-said/

Spitz:

"Generally it's not a good idea to tell people to refund and leave negative reviews when you're a community manager. TIL," Spitz said. "I appreciate all the support and I appreciate even more that everyone can play the game again without restrictions. I knew I was taking a risk with what I said about refunding and changing reviews. I stand by it. It was my job to represent the community, that's what I did."

They added: "I wanted to work for Arrowhead because they're my all-time favorite studio. I got that chance. I'm thankful for that opportunity. I'd happily continue working for them if I had the choice, but that isn't up to me or anyone else in here. I can walk away happy and I don't want anyone causing trouble on my behalf, especially not to people I still have a lot of care and respect for."

This definitely sounds like Sony wanted them out and Arrowhead wanted them to stay.