here's the thing. we're going on 6 years of bad healer gameplay, and healers BLEEDING numbers slowly and steadily throughout those years.
if people actually wanted to pick up healer, at this point, they would have.
there was a tiny jump in EW with sage, that rapidly declined. farther down than pre-ew numbers.
If enough people thought healers were fine enough to play healer themselves, they already would be.
but there's not.
the gameplay isn't fun, there's no incentive to play them (ex- tank specific mounts & titles), and i really TRULY doubt that anyone who already didn't want to play a healer will suddenly want to play healer.
we've had healer instant queues for SIX YEARS. If SAM mains wanted to try healer, they could have. and might have. and didn't stick with it.
we've had this dialogue ongoing for years, on the forums, on other sites, in game... for over half a decade now. nobody plays healer who doesn't want to play a healer.
i don't think dps mains will put their money where your mouth is. They haven't shown any indication in YEARS that they would ever stick with healing, or playing healers except to get their "got everything to cap" achievement.
(and i WILL find it funny if dps mains pick up a healer class, realize how painfully boring it is to play and immediately drop it, proving my point. same goes with people flooding into trusts, )