Whirlwind, his command grab, and his non-sand normals won’t change. But the spamming of Swarms and Spikes continue to add potential damage to Kan-Ra each time he uses them. And So does his normals that uses sand like his Punt and Dive-Kick. Each time you do a sand move, it doesn’t have to equal the amount of potential damage that Sandplosion does, but it can’t be significant enough that spamming the moves involves some risk.
This way, Zoners aren’t as thoughtless with their methods and they can still do the crazy stuff that they like to do.