Anyway. Diablo's quite agile looking when he moves. Just looking at his Diablo 2 running animation can tell you that much-- he moves more like an animal than a man when he's running so yeah the talk of him being bulky or clumsy is a load of malarkey. And I looked at Zen and the platforms while small are big enough to hold him, and the space between them isn't too high. Also it's low gravity which should help him get more air. So I see him leaping between the platforms easily enough. Don't really buy Revan's force push stopping him either because 1. He'll be moving. 2. He's absolutely massive. He should be able to get close enough to use the lightning hose which is lethal on platforms with limited movement potential.
I also see psi-storm being very effective here due to the nature of the platforms. Your platform gets psi-stormed and you're pretty much dead because I don't buy jumping off the platform while in a psi-storm and not falling to your doom and staying for the duration is bad news. Hitting Revan's general area with one (they're both kinda psychic so I could see her prioritizing him-- "I feel a disturbance in the force") kinda spells the end for Revan's team's hopes of viictory. Keep in mind that Kerrigan can also go invisible to help her cope with any force push shenanigans.
Zero should also have no problem navigating platforms given he's really good at jumping (he's got jet boosters on his feet!) and is probably also pretty heavy, but he doesn't even need to get that close cause he has a buster. Yuri probably has some issue, and grabner may or may not but honestly they're not even necessary as Diablo and Kerrigan and Zero can probably win this without them serving as more than a distraction when I think about it. Psionic Storm is just too lethal on this terrain.
It's funny with all the anti-hype I see Kerrigan, Zero, and Diablo as much better at coping with the platforming than Big Boss or Joanna (or Revan but he doesn't need to move much).
Team Kerrigan
--
No problem!
This is a cute and pop genocide of love!