Wasn't Frostbite pretty bleeding edge when EA made it's decision? How has progress been and why isn't it comparable to UE and the preferred choice? Or is it, and this is more a case of the effort of getting new staff on board to use a proprietary engine versus picking up any of the existing UE users?
What decision? I'm a bit lost here as Deck 13 doesn't have a whole lot to do with EA
Regardless Frostbite was bleeding edge, better than UE4, but suffered a major loss of engineering talent for a while. EA just kind of stopped making games other than sports ones mid way through last gen (other than Respawn). As I understand it, it was this terrible set of proscribed rules around performance reviews and bonuses and etc. for projects. They'd strictly budget absolutely everything then decide what your entire team was worth solely based on absolute maximum ROI.
The end result was games cancelled left and right, no Dragon Age sequel, Andromeda shoved out fast (sure they had "years", under very bad management then sprinted to actually make the game in 18 months or so), several Star Wars games started then cancelled, etc. etc. by nervous middle managers who didn't think any game at all would have enough ROI, so doing nothing was better than actually making any project at all.
Vice president of gamedev went off with most of the engineering talent to form Embark, which now actually makes games like The Finals, which already appears to be super successful. The end result is EA has had little in the way of games outside Respawn and Sports, and relatively little work on Frostbite until recently. They've sprinted to try and get back into shape, there's finally a WYSIWYG editor for a lot of functions in Frostbite instead of external DCC tools, finally a modern streaming architecture that came on with Dead Space remake, etc. But they're still vastly behind UE5, thus internal EA projects like Iron Man just going to UE5.
I'm not entirely sure what the future of Frostbite is going to be. I know the internal research group has switched almost entirely to machine learning tools, all of which could just be done as proprietary plugins for UE5 or Frostbite. Frostbite still has an internal dedicated team and the new Dragon Age (first one in a decade) looks great. But I don't know what the future really holds there.