I really don’t see how this is any better, they are using the same peer to peer netcode they always have. Maybe the general quality of Internet has gone up, but there is nothing I can point to that Nintendo has fundamentally changed between previous free MP and NSO, except giving some ROMS and DLC occasionally. Smash bros is still a lag fest with wireless players, splatoon still delays collision detection, Mario kart still has weird rubber banding and desync… they just slapped a price tag on it.