Well during the same game, Tidus and Yuna had their romantic cutscene in that one spring place (I forget what that place is called).

(took the time to make an account yay ^_^) I suppose I understand your point. I just feel that Zelda is going into HD soon (with whatever art style Nintendo chooses) and it would be weird to have high quality animation without voice acting. It would almost seem archaic. But you they could always have the option to turn it off for those who would like to play without it. It's not like every dialogue will be voice-overed. Zelda games traditionally have a plethora of different characters and it would be hard to employ voice actors for each one. I'm sure you've seen different explanations here of how it could work so I'm not gonna repeat that.

I suppose having options and choices would be good. Kind of like Burger King mentality, where you tell the restaurant what you want on your burger because you are the paying customer. So it would be good to have different options.

Would I go on to say the series needs it? No, not really. Would it help? Yes. It would provide an option for those who want it (and their is a sizeable demand for it).