good job love it
Arcane did not get buffed. They got nerfed. Not sure where you got your info, but this is on the forums today.
And OP made this post before the hotfixes were announced. You can see right in the post you quoted that they were going to be getting substantial buffs, hence the tuning hotfix. Could still be a net positive.
I would love it if it were still a net positive. Arcane Mage is the only DPS I play. I have all tanks.