I wasn't aware you were the arbiter of Roulettes. Just because I can get lower level dungeons doesn't mean I have to coddle new players, especially since they may not necessarily be new to the game but simply the dungeon. Granted, I'll be more cautious with a baby in Stone Vigil over Holminster Switch but I'm still going to pull more aggressively because the content has been nerfed so far into the ground I can safely do so.
Unlike you and several others, I don't view a wipe as some big colossal failure. They handled the double pulls just fine but were a little behind when I went ahead pulling all the zombies; which I didn't notice. We wiped as a result. Shocking, I know, but this isn't a big deal. We continued along without it being a big deal when I double pulled later. Mistakes can happen.
No. You are drastically overestimating how difficult big pulls actually are. I cited orange circles because tanks are only ever in danger of dying pulling two packs of mobs if they aren't dodging said circles. We're not talking about super pulls here where the tank has ten mobs on them like you can pull off in Doma Castle or Mt. Gulg. We're talking about 4-6 mobs instead of two. They deal laughably low damage. That blizzard mechanic doesn't matter if the tank uses CDs, which they should be aware of by level 51. If they aren't, the pull size isn't the issue but their lack of common sense. Otherwise, you can just chime in chat, asking them to pull away from the blizzard. Then the pull size goes back to being just as easy as it always was.
You clearly don't queue for Leveling often. I've seen all sorts of players in Holminster Switch. Many of us have because the amount of people who just try blitzing through the game expecting to be carried is staggering. You aren't new at 51 any more than you are at 71. By this point, you're more than half way to level cap. How dare we have a standard of basic understanding for your chosen job.
Nope. I have done Brayflux double pulls in a hodgepodge of gear below 32 on my alt. I've double pulled every HW dungeons in full Ironworks; used various bits and pieces of gear going through Stormblood and wall pulled every single dungeon in Shadowbringers from the very first day; in my i400 gear. I didn't do any of the super pulls save for Don Mheg's, but that's also because I wasn't aware of them at the time. Either way, we're back to you grossly overestimating the difficulty of double pulls. Now I certainly don't expect less experienced tanks pulling everything in sight even at 71, but two packs is laughably easy. If they're struggling, it's either a cooldown problem or the healer isn't paying attention. In both scenarios, the pull size (4-6 mobs, just so we're clear) isn't the issue. It's the players not bothering to learn their jobs and getting upset other peoples aren't willing to coddle them.