I'm all for buffing Restoration Shaman alongside the other HoT-based healers, but buffing it through Healing Tide Totem is not the proper way to do it.
The fact that Healing Tide Totem is the most chosen talent is irrelevant. Talents, by their inherent design, are meant to be malleable and a choice for the player, and having a talent that is head and shoulders above the other choices in the same tier is bad design. There is always going to be an encounter where one talent choice pushes ahead of the others, but trying to buff a talent that's taken by every Restoration Shaman in progression raiding on every raid encounter because "Hey, they all take it anyways, might as well!" is utter nonsense.
If you want some meaningful changes to be made to the specialization, then here's a good start I would suggest: nerf Healing Tide Totem so that the other options within the same tier are actual options, and buff Restoration Shaman in areas where they are actually hurting, such as spread healing and mobile healing, or perhaps actually make Spirit Link Totem worth a damn.
I don't disagree, just seems like it'd be easier to make HTT baseline instead, balance the numbers (if it means nerfing it then so be it) and offer another choice in its place. The ability is so core to our spec at this point, a drastic change to it this late in the xpac would feel, to me, like they'd be admitting we have serious problems, which they haven't admitted. Also, not sure if you were responding to my post earlier, or just offering your insight, i never said buff HTT, but having it as a core aspect of resto shaman healing (which it already is) makes sense as it closely mirrors, in practice, other raid CD's that aren't talents.