The problem some have is that they've felt her silence or mostly-silence (limited to inner monologues and that one-liner from Super) makes an integral part of the Metroid experience, and that may very well be the case, or not. Some fear that her talking, as well as the new focus on cinematics, could prove ruinous to the franchise as it becomes just another clone of all the other over-cinematized action games out there
The idea being that voiceover is not needed to move units, so focusing on it is a waste of time against elements that are proven to be stronger towards sales. There is a similar concern with Zelda, the idea that the game becoming more cinematic, and not less, takes it away from the franchise's glory days on the NES and SNES (though Zelda just tends to go through a cycle of relevance and Ocarina of Time and Twilight Princess are at the top with the original LoZ, so its harder to state definitively)
Monster Hunter: pissing me off since 2010.
