I am fairly certain this will not apply to XIVnation. Firstly, this only applies to using the Youtube partner program or similar programs on other video sharing sites. GBTV does not use those programs. They have sponsors. Which is completely different. Secondly, as an internet TV channel they're professional enough to pay a licensing fee to SE to be allowed to do more things with content.
As for Mr. Happy, his video about this really annoyed me because he's ignoring that he can monetize in other ways. All he has to do is ask for donations to help fund his videos and it doesn't break this license agreement.
The way it is worded means that you can easily argue in a court of law that it applies ONLY to direct monetization based on views. Which is why I'm fairly certain it does not apply to XIV Nation. Though I don't personally know if they actually use the YouTube partner program or not, I just know they are sponsored by Audible and Netflix. Due to that I can't see them using the partner program since it is not needed.
Yes it does effect Mr. Happy, which is why he posted a video complaining about it. I just personally think he's complaining about nothing since, while he can't use that specific program, he can utilize other ways of making money. I feel like most of the whining is just about having new rules and not being able to make money without a bit more effort. It just annoys me that people are bitching about how these video makes can no longer make money off things they create and yet what SE is trying to do is make money off what they have created. Think of it this way, it would be illegal to take a movie and edit it and then charge people to view it in the "real" world wouldn't it? Same rules apply here.
Now THIS I do agree with. I dislike the music restrictions as well as the mash up restrictions because it basically kills Machima for FFXIV ARR.