maybe they're calling it a home console first and foremost because the battery life will be way too short for longer gaming sessions.

Otherwise, yeah it's a handheld. There's nothing new about connecting a mobile device to a TV and using a controller to play games.
It's not been officially supported by Nintendo or Sony in the past but it's
A: possible on hacked handhelds
B: a given on Android devices
C: possible on Windows tablets (even with Nintendo games in combination with emulators)

Your claim that third party developers are gone contradicts what you believe this console is. Nintendo's hand held consoles get massive third party support. It is their home consoles that struggle in that area.

Yep, Japanese 3rd parties will jump on this like a hungry shark. And if Nintendo can leverage them towards the west as some eastern flavour machine, then it could serve them really well.

They are only showing games in the trailer though. It could still have a touchscreen for tablet style apps. It can not use touchscreen for games as it has to work exactly the same on tv while the screen is locked inside the docking station. Lowest common denominator...
They did add splitscreen for the handheld, but will it be possible to have 4 player splitscreen on tv? And will the UI scale back for tv use or will all the icons and text appear huge.

Hmm, Nintendo says the "main fuction" is charging and TV output. I wouldn't say that's it's "only" function.

I personally was never expecting a discrete Gpu in the dock but we shouldn't twist Nintendo's words.

Will be very disappointed if the home console doesn't at least allow higher resolutions through no power constraints and maybe an external fan system

The rumours suggest it will, would be a very disappointing move if it didnt. It would really add value to the mobile componemt of the device. Would be complete daft to make tablet handheld and not let it ever function as a tablet.

I dont get this logic. Did they leave the home console market when they produced the Wii? It's Weak and small in form factor. The whole design of this machine being a big, power hungry tablet is Nintendo compromising between hanheld and console. A standalone next gen Nintendo handheld wouldn't have been much more powerful than the Vita.

well, regardless of how I see it, Nintendo promotes it as a home console but it won't get anywhere near the support that other home consoles receive

3DS developers will probably Switch, so we get Monster Hunter and maybe Dragon Quest, but what about Final Fantasy and Kingdom Hearts? we are still getting spin-offs instead of the main thing, wouldn't call that hungry sharks

apart from old game ports, Western 3rd parties are gone, so even in terms of 3rd party support it will end up with a library similar to 3DS

my point is that with Switch, no matter what they claim, Nintendo is silently leaviing the console market, fingers crossed for a good enough battery...

In theory, they don't need extra processing in dock.

Switch seems to be pretty thick...notebook thick, with what looks like active cooling. nVidia Shield TV pulls 20W in gaming, it performs (according to GFXBench) some 3-4x worse then GPU similar to PS4's (probably worse in real games) and it's built on 20nm node.

If they managed to cram something inside the Switch that downclocks (or disables some of components, like PS4Pro) while in handheld mode and manages to pull Shield TV level of performance (but on 14nm node), and then runs fully enabled when docked, it is, again, at least in theory, possible to have something that is somewhere between XOne and PS4 while docked.

Even if the dock was 10Tflops worth of compute power, 100% compatibility in portable mode is most likely a mandate. So this shouldn't make much difference to third party support