I'll concede something more like an Enhancing version of Soul Voice is more reasonable.

Although, simply dismissing a request for drastic improvement on the grounds that "nothing's as good as Chainspell" is is self-limiting. Every job deserves to be able to say "holy ****, this is as good as Chainspell/Soul Voice/whatever." The devs are basically asking us to what we want before they go back to the drawing board, we can't let them go back to it with mediocre crap.

But hey, like I said: disagree or don't, jump in that thread and chime in.