Bro it takes like two gcds to get aggro, if you're doing a full rotation or whatever then you're going too slow. If the healer rescues you, just go to the next mob while spamming your high threat ranged attack on the mobs behind you, and if the rest of the team is smart they'll bring the mobs that might be on them into your large AoR radius. It's literally not a big deal. The tank's job is, again, to get hit, their job is not to pull. Anyone can pull. Doesn't matter what you think, any attempt of you pull you tank is against the rules and you wanting to report someone for rescuing you just males you look like the stereotypical fragile tank you see on Tales of Duty Finder's subreddit.