It shouldn't be. The fact that you asked instead of just berating the team or shirking into compliance makes you a better tank than the ones that do the latter. The team should have already been adjusting to your gear level (you said artifact gear, right? The i200 stuff?) because especially if they were in better gear, you likely would have been playing tug of war even if you went full tank stance and aggro combos. There's a few pages of debate over this, but there's a lot of us out there that aren't on a optimized rotation; myself included (though I'm certainly more self-aware now XD). Your SAM was still out of line. A) Because he was toxic and B) because even if he wasn't willing to use Diversion, he should have still been prepared to do whatever was necessary to get through the duty and he made it very clear that he wasn't. (There's other things you can do to manage aggro, Diversion is just one of the easiest).
You communicated with your team. You made it work. The closer you get to high-end, the more you'll see people doing the optimal as the norm I just... wouldn't expect it too much in the lower end stuff. Sorry you had to deal with that. :/











