Randomness is never what you want when a strategy is the ultimate goal. We know X will happen and we can plan around it allowing us control in a situation where so much is already against us. Randomize a mechanic like this and may as well add: gorgons can appear anywhere and may choose to follow you, or oracles can now appear anywhere instead of particular points. Structure is what forces a team to learn and strategize, removing structure is what forces teams to loose control, start blaming each other, and quitting, and I don't mean just the raid. The biggest complaint the community keeps bringing up is RNG with the loot system, which I personally don't mind. But to take every ones least favourite mechanic and jam it down our throats during an already insanely difficult and strategy heavy boss fight is ludicrous! Please bungie don't do it.