> responsible employees who accept the fake interview but then use their personal laptop to do the interview will have their personal laptop compromised by the pentesters.
If your laptop is successfully compromised by the pentesters then pretty much by definition you weren't being responsible. Though I agree that pentesters going after personal devices is ethically dubious.
Compromising employee personal devices is strictly out of scope for any security testing I've seen.
> Though I agree that pentesters going after personal devices is ethically dubious.
It's not just ethically dubious. It crosses a lot of legal boundaries. A company can consent to have their personal devices hacked. An employee doesn't automatically consent to let a company's contractors access their personal devices.