Aye, while recently replaying
TP I feel like a dog who has a bone dangled in front of him. Like you said, seeing the character's mouths move while nothing comes out of them is just wierd. Nintendo appears to taking the series down a more cinematic path, and if they hope to do that then voice-acting is a must. There's nothing cinematic about having to look at a block of text rather than the characters themselves, especially when they're becoming so much more expressive.
If they can add such great voice-acting to Metroid, a series which barely even had
dialogue to begin with, I see no reason why they can't just spend a few extra bucks on some decent actors. And if they're worried about too many fans disliking it, they can put in an option for the player to turn it off or on at their preference.
There's no reason for them to ignore it anymore; should they not have it in some form for the next game, it'll just be a terrible showing of how stubborn they can be.