Nintendo should provide the 3 option of online play
-Standard tracks only, picked randomly, it doesn't matter what track you played previously
-All the tracks, picked randomly (so the connection tracks will mostly appear, as there are more of them), it doesn't matter what track you played previously.
-Only connection tracks connected to the last standard track you played, picked randomly from the available one, but you also have to do 3 laps once you arrive on the new standard track instead of just 1 lap.

Everyone would be happy this way.