Giving each job a second spec: would it work?

[justinjarjar]

I love the "Arcanist split spec. didn't work!" argument when almost every Savage Alexander group has a SCH - and SMN is widely considered the best DPS in the game atm.

Devs didn't like the design and don't want to go that direction, is that good enough?
(not blaming op for bringing it up, just that there is a reason it most likely won't happen)