Is it really, REALLY too difficult to wait a person to climb the chains and activate the boss earlier? Is it really too much to ask? We wiped almost every single time people didn't want to wait those 10 seconds. How hard it is to open YT and just watch a 2 minute clip that will save you sooooo much time and trouble? Unbealivable.
To this day there are still people that don't know the corrupted ball mechanic, so I wouldn't assume that everyone knows about this cheese gotta get lucky on that.