Is there anything I'm supposed to do when the The Leightonward uses Excretion? At first I thought it was just your usual "healer cleanse" mechanic but I've yet to have a healer attempt to cleanse this off me. So that implies that maybe there's something I'm missing here as a dps? I mean... I'm tempted to call out healers on this, but I'm actually open to the possibility that I'm not doing something I'm supposed to so I'm asking now.

For what it's worth, I can strangely get by just fine by sprinting when the big plants spawn afterward.