There's a lot of criticism of Warren here that I don't think is very fair. He was the most visible face of the team so I imagine it's natural to assign him blame, but if anything we needed more of his direct involvement. The team had a lot of strong personalities and he was mostly hands-off. In person he has a very gentle, kind, and humble demeanor. He had a good vision for the game, and perhaps some ambitions that were outside our reach, but I don't recall his involvement ever being corrosive.

The things that hurt us were:
Picking Unity over UE4.
Design being understaffed, and effective design leadership coming much too late.
Milestone tunnel vision. A lot of the work put into the milestone demos ended up getting thrown away.
The UA trainwreck.
Starbreeze pulling out due to bankruptcy.

Some things went right:
In spite of the technical difficulties with the engine, the staff at Unity were incredibly supportive and helpful. Some of the AAA improvements to Unity in the last couple years were born from the work they did with us.
Our milestone demos looked great.
We touched on some truly innovative game systems that I unfortunately can't talk about. We shed sweat and blood to get them working, but it started to come together.

I don't actually know what's going on, but the team is no longer employed there.