Why has there been so much less emphasis on flaps in the recent Karts? WHY?
Luckily for me though, I cashed in on this in MKW by being able to get top 100 times in a game I really sucked at, because I played for flaps so much.
It's understandable though since the games themselves don't seem to be caring about flaps anymore (MKW wouldn't let you view them unless you completed a race, and then if you PRed only your flap it would play the failure music)... yet, flaps have been just as much a part of Kart as 3laps have, just like Luigi is also a Super Mario Brother

(poor analogy, but you get my point)
But yeah, flaps have basically become the "Side B" of the single.
In SMK and MK64 many of my flaps are lower ranked than the 3laps/5laps were because the old schoolers among us actually gave a rat's ass about laps.
Flaps present challenges in themselves, especially in post-SMK games since you get shrooms, and each one must be used optimally. It's also good for players who hate 3laps if they're always choking on that last lap, but of course 3laps are meant to be the real challenge of the game anyway.
Keep the flap charts please, although like in MKW I expect there'll be only half the players as opposed to the 3lap tables. (On the other hand, this has the unintentional benefit of giving more "weight" to 3laps in calculating a player's AF, as there are more people to pass-- more AF to gain-- when improving 3laps! And that's surely how Nintendo would have wanted it!)
In short: there should be flap charts so that players who do care about them (like myself) have something to show for it, while all the players who don't care... are giving the 3lap the greater AF significance that it probably should have. It's a win-win, all because of half of the players not giving any thought to flaps.