Do MHX and MHXX count as spin offs?

Yes.

Weirdly enough according to Wikipedia MHX and MHXX count as main game while MH World is the spin-off^^

https://en.wikipedia.org/wiki/Monster_Hunter#Games

Why wouldn't MHX count as main game? Seems like it has all the core gameplay elements.

I guess they count games like Monster Hunter stories as spin-offs and anything with 'normal gameplay' as mainline games. Since they didn't know yet what MH World is, they assumed it's a spin-off.

No idea. I just always see fans calling X and XX spin offs.

No Nintendo? Ohhh Capcom!

I feel like this belongs somewhere. It was leaked right before MHXX was revealed (the 3DS one), and has been right on the money about everything. MH:W is MH5, so going by this, Sony specifically barred Capcom from bringing this game to the Switch to gain leverage in Japan.

That doesn't really bother me. If companies can do exclusives, I don't see why they can't do reverse exclusives too. What I'm wondering now is if "MH Portable" is refering to the XX port or a separate MH portable line.

Lol, this would be hilarious if true.

OT: I just now noticed it's coming to PC as well. I was so convinced it would be a console only release that I didn't even bother to take a close look at the release platforms.

Here are the followups too, which answer your questions. 

The problem is that unless Nintendo publishes them, they probably won't come to the West. So nobody gets what they want. Sony doesn't get the Japanese exclusive they were hoping for, Capcom probably won't get a lot of money, and Monster Hunter fans don't get one stable Monster Hunter series that has a unified direction. 

"No underwater combat"

:'(