Except that’s not what happened and we know it for a fact. Bobby Kotick & the Activision executives originally wanted to throw more development hands at releasing Overwatch 2 faster so they could capitalize on the live service shift to battle passes. Jeff Kaplan and Team 4 said no, they wanted to keep it special to them and make it great. The issue is that a live service AND a full “PVE campaign” cannot be done by a team of their size (WoW has 500+ people, Diablo 4 has about 450 last time it was documented) so the execs wanted OW to start making money sooner which is why they “postponed” the PVE and released OW2 PVP as a standalone thing. Jeff left and it definitely seems like Activision went: “Wrap it up, release what you got.” and sent the PVE missions out to die.
While Microsoft did lay off a very large amount of the team (cinematics and lore for example) - it does seem like the PVP core teams are doing well and the content feels a bit more tangible for the player. Like Stadium.
(If you don’t believe me, read Jason Schreier’s book about Blizzard. Overwatch has its own section unlike any other.)