It's high time we get signed warrants that upon bankruptcy all data will be destroyed so it won't be used to make good either the creditors or the shareholders of the company that went under. I can't imagine any good outcome here, and change of control should result in an automatic withdrawal of any consent, no matter what assurances of privacy are given by the buyer.
Worth a try, but just see how hard it is to get mining companies to clean up literal physical superfund sites.
How do you even prove all data was destroyed, let alone actually do it?