I'm convinced a druid tank needs access to a lot of abilities.
Because when I one-box the druid, I have no issues on single target or multiple target pulls.

So, it is definitely doable.
But not necessarily easy to macro into a one-button spam system.
I'd like a one-button spam system, as that would make the druid far easier to box.
Or even a two button system, one for single target and one for multi-target pulls.

It's not a huge issue.
My mixed team is leveling, because the toons were already 70th with epic flyers.
At 80th, that's an extra 1100g in one hour of dailies.
The tank doesn't have to be amazing, as there are really only two group dailies I do.
And then a bunch of mobs which will die very fast to any 5-box composition.