Originally Posted by MusicallyInspired
Since when has a puzzle solved not in the way the original designers intended resulted in a dead end?
I agree with your second paragraph, though. That's a more interesting approach and much more realistic in this century of "adventure" gamers. Make the alternative more difficult AND score less points and/or result in a not-so-perfect ending somehow. Either way, I still think there should be punishment, though.
I'm only adverse to playing something again that I've already gone through to a degree. If it's a lengthy stretch, I'm likely to not finish the game, which is why dead ends are the most onerous thing to me. Deaths where done fairly, I'm fine with. And yeah I think that it's fine to have puzzles that are more difficult, score less points, and -occasionally- (where appropriate) affect the ending.