Ice Staff - Tank staple or can I get away with 2H soon?

I’ve only ever played a Warden Healer so far (mostly SPC/MA/Symphony), with an Ice Staff on the backbar, using Crushing or Infused depending on the Tank’s loadout.

Obviously, I‘m very excited for the upcoming Major Brittle mastery skill.

But also, that means that I don’t know what other PUG healers tend to run.

For Dungeons, I‘d like to main a DK Tank (Turning Tide, maybe Drakes Rush) for a while, but having played a backbar Ice Staff for so long, I‘d like to use 2H on the backbar instead, simply for vibes, with Stampede to apply Crusher.

Now that means I‘d no longer provide Wall of Elements as a Tank, but I‘ve seen that one recommended in many Healer builds anyway and it just seems a natural fit for Wardens now more than ever.

What do you think? Apart from backbar damage mitigation, would I be trading in key buffs when speccing for 2H on the back or will Healers usually fill that niche anyway?