GameXplain: "In Part 2 of our Yarn Yoshi Wii U analysis, we take a look at some of the ideas YOU submitted! We explore Yoshi's move-set (is his Flutter Jump really back?), what exactly the colored Shy Guys mean, and if the game might really have a dimensional-shifting gameplay mechanic! "
The guy just takes peoples guesses from youtube comments and puts them into a commentary. I could get just as much useful information from reading the comments from fans on just about any trailer.
Of course it doesn't mean none of it is true, it's easy to hit the mark when you throw out a dozen or more guesses.
Things like the shy guy and flutter jump were just a waste of time for example. The clip was so short that it's not even possibly indicative of the absence of any mechanics, discussing what's not present just seems silly.
Hopefully there will be some challenge to it, will be interesting to see what they do with it. Also adding specific Yoshi references like colored Yoshi's will be present. Should be one of those little gems
Hilarious!