I mean, what response can they have?
They'll probably support 26 until it goes EOL, and after that it's over.
Undoubtedly there will be dedicated community running 26 for years after support is over, writing patches, running Virtual Machines with it, finding ways to run new unsupported apps on it (much like people do for old versions of Windows like 98/XP/Vista/7), but it is for all intents and purposes the end of hackintoshing. They even joke about it on their discord...