Yeah, they did talk about it already.
Generally I get annoyed when people call Metroidvanias platformers, but in the case of Ori it's hard to make a case for that. Both games have very little backtracking and are pretty linear, they don't really leave anything interesting for the player to find in exploration outside of the main stuff everyone's gonna see. So it does feel more like a proper platformer than any other Metroidvania.
...But in terms of the gameplay itself, although it is quite good, it maybe is another grain of sand in the Nintendo beach. What really sets these games apart is the story, art direction and soundtrack, it's an artistic experience as much as it is a game.
Not invalidating anything that you said up there. Keep in mind I was expressing my thoughts as someone who knew nothing about the games before watching some brief video reviews and seeing what how other forumgoers described them, so I first assumed they were simply platformers. Them having Metroidvania elements is one of the primary factors that will get me off the fence to buy the boxed copies in December.
The devs also said cart will come with the patch already on it, further incentivizing me to acquire it. I love rewarding hard working, customer-friendly studios.