DarkmoonVael and Cynfael pretty much hit the nail in the head, Vlady. You're getting a lot of antagonizing responses because you're making said a claim that is implying that WHM is broken beyond repair and have very little to actually back it up. It's like me absurdly proclaiming the following:

"All SCHs should just change to SMN for added DPS. You're only contributing traited Virus and Eye for an Eye and letting the WHM do the rest, so might as well contribute more DPS."

I will agree that I do see more SCHs now a days. Since we are on the same data cluster though, here are a few things I've been seeing.

Today I did my Trial DR on WHM, got paired with a WHM
Went into WoD and found 4 SCHs versus 2 WHMs
When I was helping a few FC mates doing their books and was going as a tank, I was paired with a SCH for both Copperbell HM and Brayflox HM.
Recently and on two separate occasions - I was the only WHM in an entire WoD alliance.

It's not a large sample size but any stretch of the imagination, but it is a trend I've noticed recently and could be attributed to a couple of things:

(1) Healers prefer SCH more than WHM
(2) SMNs not wanting to face the DPS queue for X reason are playing SCH to beat the queue
(3) Our Data Cluster just happens to have more SCH players versus WHM players - other data cluster may be different
etc etc

Overall, the general consensus is the two healer classes are very synergistic and little should change until we see how Heavensward re-balances the healing game.