It's still true enough though. I've experienced it before. Because I had never tanked certain fights before, I was called scrub for not knowing the ins and outs of that specific part of the encounter. As a WHM, it's good to know how the tanking aspects work, but you don't have to have actually tanked it to make yourself a better player. A lot of people are taking this way too far as you said. It's quite sad really.
I'd rather have someone who plays their job well that's missing a few abilities that aren't 100% necessary over someone who has everything they need, but doesn't know how to work their job properly. There's a big difference.
