I see what you're saying. I have played some games in the past that "boasted" their "superior technology" way too much.
Nintendo is very happy about the Wii Motion Plus, and I agree that it's a great achievement. And I fear the same as you, I fear that SS will be dictated by sword swinging for the majority of the time. I don't want to see all of the bosses being killed with mostly the sword just because SS has the Wii motion plus. Likewise, I don't want to see all of the enemies and puzzles being solved by mostly the sword because of the Wii motion plus.
The wii motion plus will be very fun, yes, but if they take the time to engrave that technology in most of the other items in the game creatively, they will create an unforgettable experience.
And like everyone else is saying, we have no idea what the final product is yet so it could swing either way(no pun intended). I have never seen a Nintendo game "boast" their technology in a game before and I hope they won't start now.
Too much of a good thing can be a bad thing(and in this case, an extremely boring thing). So positive thoughts everyone, positive thoughts =P.