Things are running hot here and I didn't want a usefully angry ally to waste a bullet on Bowser when there are [ redacted ] Administration [ redacted ] jury [ redacted ].
Yes, because of the over-the-top "personally traveled" bit... and it'd likely end with DMCA.
Though looking at just one list of Nintendo's mass takedown of free fan-games, it seems very likely* it directly resulted in many children being terribly upset (and maybe thinking they'll be sued/jailed)... even if they made their own assets, just because they included a trademarked term in the title/description for something they just wanted to share with their friends. (I'm sure many did use assets, but we are likely talking about decades-old material here)
So it's not that big of a stretch, it's just not guaranteed that we'd hear this much about it.
*= judging by FNAF/sonic crossovers, content/spelling of titles, creepypasta stuff, and likely terrible art if you can still find more than a URL
It was definitely intended as a joke, originally, but when this meme was first made a few years ago, there were quite a few people sharing it as entirely serious and true.
Nintendo also sent a guy named Gary Bowser to prison for running a blog that explained how to mod Nintendo consoles. I didn't think it was even a real last name so it's weird to see Nintendo involved with two people named Bowser.