Like I said before, that's the biggest issue with Nintendo in recent years, they're bullies.
You said it. They've taken down YouTube videos, too. Examples include episodes of animated media relating to franchises like Kirby and Pokemon (the latter being especially problematic due to copyright concerns with SHOPRO, who also helped make a series Nintendo would eventually make games of, Hamtaro), and music tracks lifted directly from their games, even those extended to play for 30 minutes straight.