At that point, why would you want to have it play like that instead of using motion?
I think the problem is that this debate is not coming from the right angle at all.
A lot of people asking for a version of Skyward Sword without motion controls do it because of a weird motion control stigma that it's a "gimmick" or something that makes the game not worthy, somehow. Or a deep dislike for the concept. They feel a game with """"normal"""" button controls is automatically better just because it's not motion controls.
In that sense, they don't care if the better experience here is the motion controlled one. They have already decided motion controls can't be it. We saw a bit of it with the people arguing playing HL: Alyx with ""normal"" keyboard and mouse controls was fine in another thread, a while ago.
So, they're just repeatedly stating it is a possibility and should be done because they want the game to conform to what they have decided it's the better experience. They don't actually care if it is or not. Heck, a few people would surely feel it it happening would be a win, "Rescuing a game from the tyranny of motion controls!"
Before anyone jumps at me, yes, accessibility wise, being able to play any motion control only game with a normal controller would be good. There's people that don't have enough mobility in their arms, or have other issues that would prevent them from playing a game without traditional controls. That's good, accessibility is great.
However, making games accessible doesn't mean you have to compromise their design. Not every single game is going to work with all control schemes, and that's more than fair. Efforts to try to make them work preserving as much of the experience as possible are welcome, though!
...mapping the sword to the stick because it worked in MGRising wouldn't be either making it work, or preserving the experience, though. There's several degrees of movement lost there. And I feel sorry for anyone playing the game like that, because they got a significantly watered down experience.