Obviously it's fair to believe that not everyone will like the change. For some, however, this might become their new favorite ride, when they didn't care for Splash Mountain. I don't think that the lines will be going away at the new version of this ride.
For me, personally, I think that the Tiki Room and the Country Bears are some of the worst attractions on the planet, and I didn't mind Stitch's Great Escape. I would rather go do Stitch 20 times in a row than sit through either the Tiki Room or The Country Bears. In fact, I think that The Country Bears is the *worst* attraction in all of Disney.
But that's me. And I recognize that others love it for a variety of reasons. I respect that. Please, by all means, go and enjoy them. Just don't ask me to sit through it with you.