The sad thing is when you are that tank and, mid-sprint, will mention list your pull sizes and when to hold Diversion so you can drop tank stance throughout the AoE pull, can remind other players of their utilities (Goad, Mana Shift) per their CD, but only then players start thinking "Well, this is so fast now, if I pulled even more mobs this would go even faster!" despite that there is in fact a net speed loss when including the two extra mobs they pulled when you specifically said not to while sprinting up to the first...
It's weird how some DPS and Healers can so well understand optimal pacing and know how to pull, or at least respond to target marks to pull on the tank's silent command, to best achieve that while others assume that in all cases bigger is better (even when, say, you'd still need two pulls to reach the boss regardless and splitting it the other way simply gets DPS one-shot by instant-cleaves). Heck, there are some that still don't seem to understand that tank stance is virtually worthless in single-target in the face of Excog, especially when Shelltron or TBN and at least Rampart is already being used on every tankbuster, or that it costs GCDs to, say, swap between Oaths meaning that if you decide to continue to focus target a single mob in 5+mob AoE after pulling, rescue's going to be few GCDs away unless you come into Cover distance.
DPS: "Gotta go fast." "Why you in Shield Oath, bra?" *After pulling from not following listed target order, which already accounted for DoT efficiency* "I don't want to be that guy, but maybe you should be in Shield Oath?"
I say all this, but even then most of my non-tank pullers are in fact fully competent. It's just that they seemed comprised on one part <people who actually know what they're doing, including tracking their party's CDs> and one part <'faster is always better' bro-scientists>, and the difference, when it shows, can be a bit unnerving. So when you get four near-perfect speedruns via the former only to run into a miserably slow attempted speedrun with the latter, it wears on you.