Offcourse, look at Wii U decisions..

Well for now I really don't see any reason to criticize Nintendo about Switch or some later moves, they are currently look very promising to me. If Zelda isn't really launch title for Switch they definitely have good reason for that and they can't finish all they planed with this Zelda until March, but that doesnt mean they are stupid, its easily biggest game they ever worked on, we know they want games to polished and without bugs and espacily 3D Zelda titles. So I would understand if Zelda isnt Switch launch title even I would be disappointment because I expecting game on Switch launch and I would need to wait more for game.

You can't really compare some PS games with Nintendo 1st party games espacily with new 3D Zelda game, you can bet that Switch version wont run worse than Wii U version. Yes, but they start porting game long time ago, actually it's assumed that main reason why Zelda is not out in 2015. like initial was plan, (not to mentione 2016. relase), is to be launch title on Switch.

Like I wrote, you dont have any reason to assume that game is runing like "ass on Switch", even this rumour is saying what are reasons for Zelda not being Switch launch titles. Also Nintendo specifically stated: "You shouldn't assume what you saw on the video represents actual game footage".

.. i.e. actual game footage is terrible and not ready.

Wasn't all the game footage just copypased on the Switch models in editing, and not the actual consoles running the games?

That means that actual footage is not ready. 

Or that they wanted to make sure the best parts of the game were shown in the comercial. Wouldn't be funny if the actors couldn't play propperly and just kept dying, and Nintendo showed the footage of them getting powned?. Not a very marketable thing to show. XD

Eurogamer is also reporting the same story.

http://www.eurogamer.net/articles/2016-11-15-zelda-breath-of-the-wild-will-miss-nintendo-switch-launch

So the BOTW switch port isn't ready it seems, yet I still believe the Wii U version is sat there finished and could quite easily have launched this holiday if Nintendo chose.

Or that final Switch hardware in time when was video made (September, thats 6 monts before launch), wasn't ready for some reason to play games that are still in work.

Again, you dont have any reason to assume that game is running like "ass on Switch". I am pretty sure that Switch Zelda will work without any problems in January at full Switch reveal and with actualy fottage of game runing on final working Switch hardware.

IMO there is no chance that will Nintendo release first Wii U versions and before Switch version of game, in any case.