Why do people not understand A8?

[StouterTaru]

I got a tank mate who din't know how to tank swap... it's the first time we got it in a casual content ?^^
you can't fight against it's a new content, just try to explain and then try.
It happen also with A4 in 3.0.
Also GG SE this A8 is a so epic fight XD.

I was in an A6 party with a DRK that didn't have provoke. I did A5-A8 solo DF over the weekend (aka not hardcore raiders), and only had 2 total fail parties; that one and my first A8, where at least 6 of us were there the first time.