That EX is an absolute joke and literally only has 5-6 unavoidable raidwides in the entire fight depending on how fast you kill it.

That's 5-6 raidwides over the space of 8+ minutes, split between 2 healers who both have a huge kit of healing tools. It's no surprise healers are of less use. The second EX and Normal raids aren't much better, they'll feel chaotic while you're learning them because being hit by avoidable mechanics hurts or kills you, but once you and your group learn the fight you start to realize the actual unavoidable damage is very rare while healing toolkits have only become stronger.

We're going down a bad path. They completely ignored healer requests for more damage to heal and have actually reduced it. This is shaping up to be by far the easiest and most boring expansion for healing yet.