I agree with you.
I don't like acid idea in wizard magic. Probably cos it's kinda not "mighty" and "good looking" skill. I don't remember how exactly Blue say it, but there was something about that, that Wizards are proud of their magic.
But think about it one more time. No one said that there will be no changes in those skill's tree. We know right now, what they want, not more not less.