It's a change that benefits the smarter ones. If you are able to adapt your talents based on the opponents comp, regardless of the level you play at, the change will benefit you. If you are not capable to adapt, the change will most likely have a negative impact on you. And that is pretty much a ranking based arena game is supposed to be in my opinion. I never understood why people assume that a 'deathgrip target in 1 button smashing macro' play style should be waterproof.
Either way it will open up plenty of creative opportunities, for boxers and for solo players. If you play ele's and see you are up against melee cleave, you can swap around some talents, which can only be a good thing.