The thing for Kochetkov is that he WILL get his dough from somebody, and relatively soon. He'll only be 28 as an UFA! If he plays like THIS for the remainder of his contract (not likely, but still), someone will offer him the Vasilevskiy $9M/year Brinks truck.
As for the here and now, if Kochetkov is a legitimate #1 goalie long-term, then Carolina has a ton of options to use that unexpected cap space. It will certainly make the Aho negotiations a lot easier, for one, but it may also mean that the Canes could take more of a fiscal gamble to give someone like Jarvis an 8 year deal rather than the Necas-style bridge.