I just don't know why they don't do what just about every other game does when multiple enemies are used to represent a single HP bar. All they had to do was put an NPC out in the void somewhere that players couldn't get to that all those Servitors would share damage to, and once that NPC died, the encounter would complete. It would prevent all the "cyclical" damage bugs entirely by itself and even let you potentially destroy individual servitors without affecting the actual boss encounter mechanics. Fromsoft did this in Elden Ring with their Godskin Duo fight and plenty of other games have used this kind of trick in the past. Why Bungie didn't do it this way is anyone's guess.