Leaving one or both roots isn’t an effective strategy anymore, unless u want a gele xtal constantly healing BT. Killing them both is the answer, we just gotta find the right way of doing it. Also t8 offhands are must.
But wut if we leave caustic root up, u only lose shadowstrike dmg, and druid dmg (i think thats all), and t4 aoe doesnt do anything to dps. So if we can bash his siphon heal (given there even is a skill we can bash

)
We can offtank one with a druid and just not use certain dps, canceling the ability to siphon hp from root.
Theres alot of what ifs

Edit: theres also alot we dont know lol