While in theory I 100% agree with this (and have tried it) I find that people aren’t willing to go back for the ops points and just head through the door, negating the possibility of getting 100 ops. Even when your at 99 points.
The only reason I run the ops now is to get that commander loot pack. Unfortunately, I can’t trust people not to trigger the Aria fight before getting all the points, so I am the person the OP is referring to that is off on my own hunting.
I WANT to be helping in the fights, as that is the reason to play, but I want to make sure we get all the points as well. If I have to run off on my own to do that, so be it I guess.
It is for this reason I usually run the ops solo, even though I prefer to play with people. I can ask people to go for 100 points when it starts, but so few people use a mic that I have no idea what their intentions are (get all points or an A to B rush completion).
I wish ops points were strictly based off challenges instead of hunting for chests, that way, the team wouldn’t need to be fragmented.