The cap put on AoE healing was done without consideration for pet users.
Necromancers and rangers can hit this cap alone and mesmers fall 1 target short of cap via clones and phantasms.
I have already encountered players asking me not to summon my clones in dungeons due to them taking up healing slots!!!!
I don’t know what can be done to resolve this because making healing not work on pets hurts certain play styles as well (some mesmers use phantasmal healing to layer phantasms for more survival).
But something needs to be addressed.