Unfortunately, they would rather that the image of Win11 is this really secure OS

(This is in no way an indictment of what you've said here, it is entirely directed at MS.) If that's their objective, they've done an absolutely horrific job of making that clear. I guess part of that is they claim everything they do is for security, so no-one believes them.

Not to mention, I'm pretty sure the vast, vast, vast majority of Windows users aren't concerned that if their PC gets stolen people can get into it. They're much more concerned with the lost PC itself.

Either way, they look, frankly, incompetent. The OS is maligned by users, and they've stuffed so many embarrassing things like ads in the search bar or whatever, that any illusion of its benefits are lost behind a wall of garbage.