it wont be a miraculous cure but it will stop multipools from dumping a large amount of coins a couple times a day.
If the coins is profitable to mine , multipools will mine it. It's simple as that. KWG is just to prevent pools switching in and out and taking advantage of the difficulty.
But if the coin is the most profitable to mine , even with the increase difficulty , multipools will mine it and dump it.
If the coin is not profitable , you don't have to worry about them.