Considering the amount of these drives that they have sold I am sure they are freaking out. Especially considering now that hey have litigation going on.
I would not expect an acknowledgement or recall of the drives that also have issue and have not been officially confirmed to have issues.
In the long run this debacle is going to cost them a lot of money.
The thing is you are an informed consumer. Joe Schmoe does not know that the drive is defective or not and will keep buying them.
I know I had some friends and family buy the 2TB drives heavily discounted and I told them to return them after showing the reports.
Right now the supply chain is the wild west with defective shit and Sandisk knows it.