Or as I found it best phrased: "I guess if you enjoy doing a job ass backwards with twice the effort and in the end still won't hold a candle to a real tank spec then hey knock yourself out."
Oh wait a minute...
I forgot. This is a game and anything which is fun for you is a good use of your $15 a month. This isn't to say that I am likely to group with a panzerkin ever (99% due to never seeing), but that's just me and my $15 a month, not any dictation of what to do.
I remember a month or so ago seeing a mage trying to figure out the gear for uncrittable. Total waste of time. He won't be able to tank anything that he doesn't overgear (in the ilevel sense, obviously it's hard to truly overgear when wearing cloth for tanking) and certainly nothing even remotely resembling progression. And yet, so what? It's his fun to have or not have.
I wonder if WoW would be better off with more people wasting time and being stupid.