Tune down Maven's healing spam on Shaper/Elder/Guardian fights

You may call me noob and say I must learn to play and tell my build is trash because it can't oneshot Shaper or at least take out more than half his HP in less than 10 seconds. But let me explain. She heals boss about every 10-15 seconds. Her healing spam scales total amount HP of endgame bosses to absurd values. It sometimes makes fight 10-20 times longer. It's not big deal on regular map bosses. On guardians it's already makes fight extremely tedious. Especially when map has HP mods and it feels like she always spam healing when map has HP mods. It's even fun. Now I would prefer to run guardian maps with some damage mods. But not with HP mods (or at least with resist/equillibruim/enfeeble, it seems this doesn't make her to spam healing too, maybe it's all just sequence of bad and good rng, who knows), because I may stuck there for about 10-15 minutes. At least she ignores second guardian (if Guardian's aid is turned on). It was even more tedious on Elder fight. And Shaper has about twice more HP than Elder. And yes, it took ages to get to third phase. And I ended up failing. She made him almost immortal. But next time she spammed steelskin on him instead and it was completely fine. It was like common Shaper run, just a bit harder. So. If one mechanic creates such huge DPS requiremnt spike, maybe it's poorly balanced? I think it's should be cut at least in half. Or it's frequency significally reduced. Or Maven should be able to use only fixed amount of heals per boss. Again. there is nothing challenging in making boss 10-20 times tankier. It's tedious, not challenging. I can handle any guardian for 10 minutes instead of 1 without dying, so what? It's far more likely I fail Shaper fight this way because it has luck based elements, so sooner or later I'll get screwed by RNG.