It's the new hot business model. Buy a very successful studio then liquidate it.
For EA this is modus operandi for a long time. I remember them buying the likes of Bullfrog, Westwood back in the 90s and then shutting them down a few years later.
Bioware hasn't been very successful - creatively or economically - in some time. I loved their heyday more than most, but they're far from what they once were.
EA bought Bioware 19 years ago. Are you saying this was their strategy for two decades?
Nothing new under the sun - https://en.wikipedia.org/wiki/Embrace,_extend,_and_extinguis...
Bioware have not been very successful for a very long time.
Even in the good times their ability to create (and hide) black holes was prodigious.