Re: Yes and no.
"Starting with: is it sensible for the OS to defer responsibility to the hardware."
yes, _for ordinary tasks_.
But security? No, never!
Even less to 3rd party totally unverified and who knows what hardware. That's just not done, ever.
That's a major security stupity by itself.
"Secondly. SSD manufacturers did this accidentally, not deliberately. "
Yea, sure. And flying pigs deliver those SSDs where empty master key passwords happen accidentally.