Yeah, pretty much. The 'hardcore' groups, or at least a huge chunk of the vocal ones, tends to, ironically, act extremely childish once things means mostly for younger players (or casuals) are announced. Having some 'casual' titles that could potentionally be for Switch what Wii-Fit and such was for Wii (a huge deal) is only good for the console, and that will cause a LOT more sales which will cause third parties to be more interested and will let Nintendo more comfortably focus on so many more things around this. If the Switch is doing amazingly thanks to this new whatever-it-is, combined with them only having one platform to make games for, I can totally see them making games for most of their franchises like F-Zero and so forth.
Nintendo is in a great position, and if people hype themselves up for something that is meant for younger kids to be able to enjoy and 'kids at heart' may also enjoy (like many of Nintendo's games, actually), and it ends up not being something that these specific people want, and they start to get mad at Nintendo for not making only teh hardcore games, then, yeah, I don't know what to say. People can be disappointed and to each his own and all that, but having a more Casual title that gives brand new experiences won't kill off Metroid and such.
Of course, it is hard to say specifically what all this is about before we even know what we are waiting for. I am hyped even if I feel there is a chance it won't be something I am that into, but eh, I know the games I want are coming.