When we're speaking about theory and general raiding concepts, experience is not always necessary. You also do much to assume that I don't know what I'm talking about, just because I admitted in another thread that I haven't been in Savage yet. Such an attempt to invalidate my argument by attempting to undermine my credibility is called an ad hominem, which is a logical fallacy, and does not actually address the matter at hand. We're talking in high terms about raiding and raid progression in general, the discussion of which does not hold experience as prerequisite. Suggesting that someone can't talk about raiding concepts because they haven't raided in this game is presumptuous, and quite frankly elitist.
Except that when SE balances the fights, their healers don't do damage, and their tanks only do the bare minimum action required to hold enmity. I'll have to find the interview, but the developers balance endgame fights around DPS having certain gear levels to accomplish the fight. Any additional DPS from tanks and healers is nice, but the fights are not balanced around it, and so technically don't require it above a certain gearing threshold.
I never said that more DPS didn't help, or that faster clears weren't better, nor that stance dancing isn't fun (I'll agree that it is), nor even that a PLD should be in ShO 110% of the time, even when offtanking (that's just silly). I'm simply saying that the fights aren't designed to require it when the DPS are at a proper gear threshold. Before that, as the developers said in the same interview, yes, a clear will probably require more DPS contribution from tanks and healers, but it's making up for the DPS jobs' low gear.
Mastering a class is always a good idea, and knowing how to maximize your output is also a good idea. But the game is not designed to make stance dancing a necessity. It's a good skill to learn, I agree, but I would not suggest it to someone new to tanking until they've learned and are comfortable with the basics.
EDIT: Here's the link to the interview.