If majority wants to use Ctrl+C to copy, and the rest want to use Alt+M or don't care either way, then the most sensible thing to do is have Ctrl+C copy by default, and make a setting for the rest, which is exactly what is done here.
Because you reference the behavior of the majority as a counter-argument.
So if 40% of people use delete for more than a dupe photo and thus would benefit from this even if they were hacked (vs Recall), how does the fact that the majority doesn't do that counter the benefit for this non-majority group? If you only care about the majority, this makes sense
Your analogy is wrong in both characterizing the problem and offering a solution:
1. The majority doesn't want this just because they fail to protect their data properly
2. Defaults matter and having an option doesn't imply perfect awareness/disabling by that non-majority group
So at most you've somewhat reduced the affected group while still not addressing the original issue why you think it's ok to ignore the non-majority (It also doesn't address the video calls)
1 basically contradicts the whole premise from 6 or so levels above that for majority this does not present any additional risks to their data, because they never delete it anyway.
2 addressed above
"ignoring" non-majirity addressed in Ctrl+C comment.
1. was about a different flaw in your argument, not 6 above. That one is also wrong, see X levels above re video calls which you don't need to explicitly delete for them to disappear from malware's view without Recall
2 addresses above, including Ctrl+C, so you need something new to address it
There are a number of things that do disappear. But when you put them in the line next to bank credentials, private pictures, passwords, and private documents, they pale in comparison.
Re: awareness. Are you saying the only MS problem is they are not marketing capabilities enough? Assuming the video calls point is addressed, your whole "feature is extremely bad" argument is that it is on by default, and one has to know to do something to turn it off if they don't want it?
If majority wants to use Ctrl+C to copy, and the rest want to use Alt+M or don't care either way, then the most sensible thing to do is have Ctrl+C copy by default, and make a setting for the rest, which is exactly what is done here.