Why wouldn't I believe why when this bullshit youtube deal of Nintendo is the only thing youtubers are currently talking about? He is just one of many who see and tell people how much of a stupid move this is by Nintendo.
Nintendo may be right in claiming ownership but they gain more money without that deal than it would ever earn them. All it does is pissing off unpaid marketing staff, which is what most youtubers essentially are for Nintendo.
If you demand respect or gratitude for your volunteer work, you're doing volunteering wrong.