Originally Posted by
Akonyl
It sounds like the issue here is you're assuming that the split-second aoe flashes here are meant to be dodged with hardcore gamer twitch-react skills, when they're not at all. When you see a split-second aoe indicator flash like boss 1 of Alexandria, you should take it as a sign that there's something else you're supposed to be paying attention to to tell you where to go, because indicators like that are always just meant as a way to show you where the range of the attack is in case you get hit, so you can learn where the edges of the aoe actually are.
"When you see the telegraph, it's already too late" is the point, you're supposed to already be in position to dodge the aoe before it shows up. Stand on the donuts before they explode, and stand diagonal of the plus signs before they explode. When they do, move into position for the next one. It's a learning mechanic, not a reaction one.