What Nintendo doesn't seem to realize is that the whole point of repackaging or remastering a game for a new system is that you include all current and future DLC for free. That's what the word "deluxe" in the title implies. However, someone at the Mario company didn't get the memo and simply ported the existing game from the Wii U to the Switch and still expects players to pay for the lackluster DLC content.
On top of that, because Nintendo only likes releasing one mainline Mario Kart game per system, it's likely this will be the flagship Mario Kart game for the Switch era.
Because of this, despite having slightly more content than its Wii U counterpart, Mario Kart 8 Deluxe loses some points overall.