Or an external degaussing magnetic field. Or heat. These methods make the hard drive unusable, but they reliably destroy information.

The weight of subject-expert opinion appears to be that it's not recoverable unless and until you can show it is, in fact, recoverable. If you're asserting otherwise, the first thing you'd need would be a counterexample.

I note also you're supporting an expert opinion that agrees with you and denying an expert opinion that disagrees with you ... when they're linked opinions from the same expert.