We'll see if some of these games change their tune in the next few months after Nintendo Online launches, but we're guessing some have made the call to skip it permanently.
When Nintendo launches their new online service sometime this month, one of the things many players were looking forward to was cloud support Partially[...]
Nintendo Online Archives
Nintendo has shared some more details about the Switch's online service, which is designed to be an "affordable, multi-featured paid service that lets users enjoy online play for compatible Nintendo Switch games, access classice NES games, cloud save features, and a phone app.