In the 90s, camcorders were a relative novelty and nobody had any reason to be anxious about being filmed because there was no way to easily share video with millions of strange people maliciously for clout. If you were caught doing something funny, you might appear on TV after signing a release. (e.g. America's Funniest Home Videos) Sharing video on the internet was a practical technical impossibility, and people had mostly private lives. You're right it's not really the glasses, it's the internet and social media. I wouldn't be surprised if the first person POV provided by glasses makes content like that more compelling, though, and thus more common.
People covertly filmed for malicious reasons even back then of course, but it was not generally made available to the masses.
If I have a point, it's that I don't think this is evidence that we're more fucked up now than we were then, just that technology has enabled new kinds of abuse that were inconceivable back then.
I suppose it's true decrypting the files is not so much "circumventing" the encryption as it is... decrypting it, but I think for the purpose of the DMCA it's the process of "circumventing" Nintendo's attempt to keep unauthorized people from playing these games that it's referencing. Encrypting those files is a part of their DRM scheme, so they say undoing it without their authorization violates the law. That's my understanding of their claim, anyway, and part of the basis for their previous DMCA takedown notices to github. I don't think this specific claim has ever been tested in court.