It's not just people gatekeeping, developers are usually going to target whatever gives them the biggest return. PC games have been gimped for a long time because the developers make sure the game runs on consoles as well, and if cloud gaming takes off, it'll be even less likely that people develop games with PC players in mind. I can't blame people for wanting cloud gaming to fail; if it's succesful it could cause major changes to their hobby as games are developed for the lowest common denominator.