Yeah I did see them say that in the post
“Some classes have also received an early buff, despite being expected to scale well as the Mists of Pandaria Classic expansion progresses. Our intent here is to give certain specs more power to balance them early in the expansion, but we already plan to revert many of the buffs made to these specs as the expansion progresses, and these specs naturally scale back up to their expected levels.”
Which is a good thing, as it does mean that they will be paying attention to balancing throughout the expansion and not just the beginning of it.