DracoSuave
First Post
I know you said it was not useful. If the power is so bad, choose a different PP, but since you are obviously not thinking that way, you consider the rest of the PP good enough to make up for the one weak power.
Thus the rest of it is probably powerful enough.
Thus my answer.
This.
Some paths are balanced around their features, others their powers, and others are somewhere in between.
That said, without examination of the rest of the path, a simple answer like 'swap the power' doesn't necessarily make the game -better-. If the rest of the path is supergood, then 'Well, we can swap it for a narrow power to make up for it' is a decent answer.
For example, take Daggermaster, which is the posterchild for 'I took this path for a single awesome path feature' paragon paths. If you wanted 'A more useful power' I'd say 'Not while you're sporting that single path feature that makes the entire thing worthwhile.'
But... other paths one can be much more lenient with.