Right, but that doesn't result in better games, and Metroid has never been one of Nintendo's "big appeal" franchises. it sells to a very specific niche, whose expectations were filled very nicely by the original Prime.
Now, as to the expectations of the average consumer? No, that doesn't work, I agree, and it's going to require a shift in the entire perception of what it means to play a game in the first person.
But I'd rather see the birth of First-Person Adventures as a proper genre (instead of just being Metroid Prime) instead of Metroid being adapted towards consumer expectations. I want new expectations.