Sorry, it was late, and I was tired, was thinking of D maps...
And yes. Tier 1-2, you need more than a group of level 65's. I had a tank on E, Mod, D maps one night after I finally got my last quest piece (trust me, I lost count of how many I have done, but it's TONS) and went on a bank clearing spree that was level 65, had about 10 AA. And I could outtank him on the maps. I was chain healing the entire time, and usually I grab aggro just to have fun, they've become that boring to me.
Now, imagine if I wasn't geared like I am, and this was a full group of level 65 with 10 AA's. Tell ya what, I'll log on one & try to tank two non mezzable mobs on a D map, and have some 65 with no AA's try to heal my ass. It ain't happening.
This is a very long, very time consuming quest. Finding folks to do maps first off. Second off, the Vah is time consuming itself. Normally your groups are either friends or guildmates, who also need the drops. So... your chances are limited to two things. First off, does the damn piece drop. Second off, do you actually get it.
Unless it's YOUR map, and you're with folks that know that you are claiming the quest piece, then it's up to /ran. Then, you're probably like some of the map groups I've done that say they have multiple maps, and as soon as piece drops, "Got what I need, thanks guys!" and bye bye group. One of the key reasons I don't do maps that /ooc Map group, quest piece spoken for. Same with Vah. You take multiple folks to try to get one drop.
Anyway, still saying OP is looking at it from the wrong viewpoint. The only time I'll even do maps or Vah stuff is for friends/guildmates, because every other time, it's ended up the clusterfuck from hell.