There is really only one "important" coin and that's Bitcoin, maybe. It has something like 95% market cap share (though it only a minuscule near-zero market cap share compared to fiat banking). Its developers have certainly not refuted the claim that PoS is a sham when it comes to any sort of real long-term decentralized security.

The rest are long-shot attempts to become important, with varying degrees of scamminess and developers who are varying degrees of full of shit in promoting their coin/agenda/sham. That certainly includes both of the coins being discussed here.