No user reviews, no easy help button for noobs, no cloud save, only recently got achievements, can't crush a friends party. all sound like little nice to haves that don't add much value. Does it allow me to find/play the game? Everything else takes time away from playing.
This would be like shipping an OS without internet access to end-users.
Nobody cares about centralised achievements any more, and most people don’t particularly like having different friends lists for each service.
People would rather organise a game through something like Discord that is entirely seperate to the store ecosystem.
I'm not saying you need a full social network on every platform, either.
Nintendo must have missed this.
I'm not sure you understand the market. If saving to the cloud is a must have feature your game will provide it. Ditto for multiplayer. No one is refusing to play a game because the platform you purchased the game on doesn't have an easy help button.