I’ve been thinking about it but I’m only posting this feedback after finding someone that agrees with it.
Personally I didn’t even know that Sunder comes from this cloud because I never noticed it and thought that Sunder is more or less unavoidable before Gnuffi told me.
Here’s a video that shows the cloud. I play with low settings which might be a factor
I do manage to evade the cloud with 100% consistency with long evades though but it might be harder for some melee builds that need to know the cloud location better to be able to deal damage,