I don't think that is the case here. People have chosen to stop buying bud light. Period.
I don't think there is any apology or course of action Budweiser could now take that would cause people to go back to Bud Light. Sure some will, but Bud lights sales will never return to what they were previously.
I was in Costco today. Budlight display was pretty full. But so was the Miller Lite display. Budlight costs more.