No...I say new version's better; I like the vibrato. It might've been a bit much, but I think it enhances the emotion very appropriately. Plus, the old harsh style isn't so overpoweringly present.
Hmm now that you've brought it up, this is the first time I'm listening to what's being said in detail. Ummmm the intonation of the Shhh makes me want to think it's "yoshi" cause Japanese people say it like "yoshhhh." Wouldn't make sense next to the "you suck." At first I thought, it can't be "you suck," but I can't figure out what else it might be. Maybe Japanese people use "you suck" differently than I would...in this case, the Shhh would just be a random noise Ayu's making in response to the jest...the word that the guy speaks right after sounds like "kita" meaning "<something> came." That just confuses me more. I wish I knew what was going on...
(btw it's so cool listening to Ayu practice...
)