I don't have much time to post tonight, but I will leave you with this thought for the weekend. If Blizzard insists on making Life Tap scale negatively with Stamina, therefore forcing us to allocate our Talent points into worthless Talents (especially in the Demo tree), they also have no choice but to reconstruct our talent trees to make them more efficient and complimentary to this change. There is no question about it -- it just has to be done during the next class review, and soon!
I mean, just take a look at the state of our 0/21/40 end-game DPS build (and yes, I know these aren't the best talent allocations, but just bear with me so I can make my point):
The way things stand now on the PTR, we'd be foregoing Demonic Embrace and Fel Stamina (once staples of the Demonology Tree) for talents that buff our soon-to-be sacrificed pet. How backwards is that? And don't even get me started about having to drop 5 points into Cataclysm -- what was a "meh" talent now becomes a must, sacrificing the investment of points for more important talents down the tree.
In any case, both trees are in desperate need of a review and much needed action. And when you're considering changes, Blizzard, please remember that you've already created a Mage class.