I've done the kuva disruption 10 times now (for science, mostly) with 3 randoms each time. With a smeeta, no booster, and going full tryhard I average 2600 kuva after 20 minutes. Kuva survival on the other hand with just a smeeta and watching a tv show on the 2nd monitor nets me on average 3000 kuva per 20 minutes. Maybe I'm in the minority here, but I farm kuva to reroll rivens to play the other parts of the game more effectively, not because I enjoy farming kuva--I [dis]like survival about as much as disruption. As these rewards (i.e., kuva; not sure why the universal medallions are a possible rotation drop, there's plenty of other ways to get a measly 1K syndicate faction) stand, there's no incentive to ever doing the kuva disruption node.