If they change to ASIC and bitmain can use their recently launched cryptonight ASIC to secure the network, i guess its not a bad idea at all.
PS: I dont hold any SUMO.
It's a very smart decision and signs of vision for future and good management decisions. Of course you'll upset all the hobbyist GPU miners but they have plenty of other coins to work at. We'll tell in a couple of years if ASICs were a bad thing for crypto networks ...