I really liked the game, though admittedly, after finishing it, I never went back to it again. I know some people enjoyed the leaderboards and going back for speed runs.
2013 was a strange year for Nintendo because they hyped up a lot of games during E3 and even extended that hype to in-store demos at Best Buy locations (which you can debate was either a good or bad idea depending on crowds, organization, etc).
Just out of the four games they showed at Best Buy, only two made it for the holiday season (Wind Waker HD and Mario 3d World).
It isn't to say that 2D platforming games are dead Nintendo probably had more success on the handheld with Kirby Triple Deluxe/Planet Robobot, New Island, Woolly World, Box Boy series, NSMB2, and Mario Maker. I don't think Chibi-Robo had a great 2D debut and I'm sort of lukewarm about Pikmin turning into a sidescroller. They all operate differently than Mario (except for the mentioned Mario).
The only issue I had with Tropical Freeze was it felt short and slightly easier that Returns. Load times were a drag. I didn't think it was worst. There was enough expanded in the game through multiple characters, level design, and music to make it more than a worthy sequel. There's no doubt as to WHY it had to be made.
The game (and its prequel) deserve a second chance on the Switch and may benefit from the Switch's growing audience.