i agree with the video 100%
Nintendo is clearly testing the waters with Mario Kart 8 Deluxe. If it does well, they're gonna bring over plenty of Wii U games. I'd rebuy pretty much the entire Wii U first party library if given the chance.
An obvious next release would be New Super Mario Bros U (and maybe Wii) - there's no Wii Gamepad functionality, the game was very early within the Wii U life cycle, and it should be rather easy to port from a technical standpoint.
edit: with regards to the storage discussion above:
I strongly believe that - by means of SD cards - the end user has control over how much storage they need, is great. - whenever the storage is integrated, manufacturers ask for a huge premium per gig, and you need to decide at the time of purchase how much headroom you want for the future. Which means many of us would opt to pay a premium now ... just to make sure.
Do not forget that the fact that the Switch is "a generation behind" in Hardware power also means that its games shouldn't really average to 20 gigs like modern PS4 / Xbox One games do, but come in at about 5-10 gigs, maximum.
Storage prices will keep coming down and since the Switch supports SD cards up to 2TB, you can just upgrade to much bigger storage at a later point, when these kinds of SD cards are at a reasonable $ / GB.