Well, Guardian Fighters and Clerics likely have all the T2 they need. As a GF I can say I'm done with that character (gear-wise) and I'm waiting for the next class to be released. Great Weapon Fighters don't do T2, or at least not effectively, so they buy their T2 from the AH. This leaves TRs and CWs as the only ones…
To be polite, that isn't tanking, it's surviving. You have two Astral Shields on the ground almost ~90% of the time. There's almost no aggro held throughout the video either, you're capable of pulling them to you, but they're still not facing you, they're just kicking the **** out of the group. In regards to something you…
Given that I have ~250 ping for the most part when playing (Playing from Australia), I understand your issues with blocking, but for the most part, you end up memorizing at what point things are going to attack and you block the swing even lands as a second-nature. I do hope you're able to get used to it, though.