It seems like we're stuck trying to make supposedly hyper-competent characters do their hyper-competent thing without taking all autonomy away from the player.
The things Sam Fisher does seem like things a very good marksman who's shooting at people who don't know he's there ought to be able to do; it's just that it's hard to make him do those things within the usual limited field of vision offered by most video games, and harder to make him do them while twiddling a crosshair with a thumbstick.
So we have the annoyances of auto-aim, or the annoyances of manual-aim, and now- yippee!- we have a whole new category of annoyances.
Loved "...that viciously savages you every time you try to give it free health care", by the way.