Gormless Noodle
Member
I'm pretty confident Nintendo wants and needs third party support since they learned they can't support their consoles on their own. To do that, they need to at least match the current consoles in specs and support current engines. They've already got Unity and Unreal 4, and are part of the Vulkan initiative. There's still plenty of gamers who haven't upgraded yet, or want a Nintendo console, or are fine owning multiple consoles.
You need to think of the long game here. Nintendo isn't going to win this gen with the NX launching three years later but it will build a foundation. It'll me the first to have online on par with the others, cloud based accounts and gaming, an achievement system, free online, and a message to consumers that can get the latest games on our platforms now. The message might take awhile to kick in, and Nintendo might not reap the benefits until NX2, but you gotta start somewhere.
The NX is going to be at minimum, XB1 levels of power, which should be cheap to make since its 2011 tech and if costs about $350 to make a profit from, while not being tied to TV features and Kinect.
You don't need a powerful console for 3rd party support, you just need a console that sells well.
Going the route you described would be a very sudden shift in course for them, of which they have made absolutely no indication of being interested in this past decade. Not to mention that at that level of performance and that price tag, it would mean the NX is dead on arrival. You can't reel in the core with that and you'd alienate the casuals again as well. It would be the Wii U all over again.
So you'd either have to put EVERYTHING on the line and outperform the PS4/Xbone on a technical level to even get a modicum of interest from the core, or you'd just have to make a cheap box with a unique angle and try to reel in the masses alongside their usual fans. I'm gonna place my bets on the latter.