It’s probably a bit of this and a bit of that. I mean the game went from one of the best revied games to one of the worst in a day. There were refunds and a drop in players all at the same time.
My prediction is that the game will rebound, certainly, but will not reach back to the levels it had before. A percentage of people who refunded won’t be buying again and another section probably will quit the game altogether, now or as soon as something newer and shinier shows up. Lots will forget to change their review.
Sony actively hurt their own game and probably made irreparable damage.