Something I want to address that's recurring cuz I've also heard it for the spooky expert roulette dungeon and I'm so very happy about it cuz it changes the habits that people have been taking in normal content:

Why is uptime such a big issue in story/normal dungeons? There's no enrage, you don't have to meet a DPS check, why on earth would you focus on uptime in this kind of content

You can do it...but in that case all that Dawntrail MSQ ask for you is to up your observation and reaction skills

and if you can't do that, then detaching yourself from the boss or stopping all your casting is OKAY, just chill, you do not need 100% uptime as a healer to clear the boss

Its okay if you miss a cast of your DPS GCD to move to the correct side

Its okay if you cant autopilot right-left-right-left anymore and have to actually move your camera to look at the boss' feet to decide where its safe that way you don't snooze like in previous expansions

and last but not least, as a healer don't put extra stress on yourself, its okay to use a tetragrammaton, a lustrate, a druo/taurochole or an essential dignity and any other oGCD tool that lets YOU, the healer, be able to move and keep yourself safe. it doesn't matter that the poison tick is potent like a savage one THEY made the mistake of walking into that puddle and are being punished for it, you can do your best to keep them alive but if they die to the tick its ultimately their fault, just rez them when you can

The DPS will learn not to walk into those puddles next time, more than being cruel to healers this is more a learning lesson to the DPS greed I feel like