I will just quote this person and say "I agree!" because I do.
Where exactly is the complexity in "increases shadow damage by 5/10/15/20/25 %", or balance druids' "increases melee (!) damage by [enter numbers]"? It's not fun, interesting or inspiring.
In the end, you'd end up with the cookie cutter build. You do have choices these days, and you can change talents depending on boss encounter, enemy arena comps etc.