Andrews, i'd say that it is not a grind. Every month, when i see it's up, i hurry there to do, well, arcade games. Every month, i gather artefacts on all my alts. And every month, i go there, and wonder about the background of the faire.

And after a try or 10, the cannon one is fairly simple, isn't it?

If we had DMF every week, people would have everything already and the place would become IQD 3.0 / Argent Tourney 2.0
As it is I took my sweet time to do molten front. My alts are about to hit it, and simply the only reason they'll do that 3 month grind is because of the BoP profession recipes.
I'll be running my main through DMF as often as I can, simply to score tokens. And the monthly DMF profession quests are a godsend at 500 skill…

No daimonie, the canon remains a big pain. I can hit it exactly one time and completely miss it the next. I know about what to do, but it is still quite difficult to get "right" and that makes it a huge grind.

I would suspect you don't run too many alts as I do, so I suppose it is less of a grind without doing that. I have skipped the dailies mostly realizing I will never hit most of its rewards.

Also, getting zapped out of the whack-a-gnoll area when your time is up, especially in the middle of turning in the quest or even if you are standing outside the area is annoying.