no

Nope not crazy at all.

DS was announced in 2003, debuted officially at E3 2004, released in November 2004. 

3DS was announced in March 2010, debuted officialy at E3 2010, released in Feburary 2011. 

3DS needs to be replaced in 2016 anyway ... five+ years is too long for a platform that's not even selling that great anymore (sub-10 million shipments already). Don't let the "new" part of the New 3DS fool you, it's nothing more than the 3DSi. 

For people saying no, let me ask you a counter-question.

Yes or no ...

Would leaving Twilight Princess on the GameCube have been a stupid move now having hindsight to look back at it?

And trust me, I remember, there was a lot of nerd rage from GameCube fans back then when it was announced that it was for Wii as well.

The NX was probably the reason for the delay. In addition, that's probably why they are not showing it at E3. Whether it will be NX only or cross gen remains to be seen. Given that the NX is going to have expanded capabilities, I do hope Nintendo doesn't nerd Zelda to make it fit on NX and Wii U.

Also, NX will not be a handheld. It may have a mobile integration component, but there's no doubt Nintendo has realized the handheld market is a dead end with the rise of mobile. That has been proven with the downfall of handheld popularity in Japan. At the same time, the Wii U needs to be replaced ASAP, and it is a new type of gaming console that will excite people the most.

NX can replace both. 

Handhelds may be declining but at least Nintendo portables still sell reasonably well. 

Nintendo consoles on the other hand ... have been selling like donkey turds since 1998 aside from the Wii which was powered by a miracle controller fad.

If Nintendo does what is smart for their business, then yes, it will be a cross-gen title.

They are releasing this game on 2016 for WiiU only.

But in the future you will be able to play it on NX too. They can even make a Sony and release a remastered version for NX, or maybe is just the console having backwards compatibility.

If they're going to release it on NX at some point anyway, then what's the logic for waiting until later?

So they can sell fewer copies all around? 

Why not utilize it as a launch title, it will get 10x more press and attention that way just like Twilight Princess certainly did, it will also buy Nintendo invaluable time to make sure the NX launch is stacked. 

I'm sorry but "yeah but Nintendo promised us and we're super special Wii Uers, Nintendo owes us!" is not a logical or rational answer. Lets remove the hysteria and emotion out of this and look at it from a logical POV and the answer becomes fairly obvious. 

I think they will release a 'remaster' with NX but not a dual launch like TP.

Why not just have it at launch in that case? 

If Last Of Us actually wasn't going to be finished until November 2013, you bet your ass Sony would've just dual released it and used it as a launch title.