This all shows what an absolute disaster the DMCA was; how poorly thought out it was, how unconsidered the consequences were, and how badly our legislators failed us... to give Hollywood a little extra cash. We should be outraged.
It all started as "hey, these damn kids are stealing our musics". So they made a law with "broad bipartisan support" to punish those evil evil people that were sharing their CDs with other people. But then other people realized, "hey, we can use this to make money." Now it's copyright infringement to repair your tractor. They keep the DMCA alive by carving out tiny exemptions every few years... but never addressing the core of the law. We should not accept random tweaks and amendments to this toxic law.
I think it's time to move to a post-DMCA world. It was illegal to pirate stuff before the DMCA. Just go prosecute that if you think it's a policing priority. We don't need a special law, as it clearly makes possible too much abuse. Don't like someone? DMCA their website. Want extra money for your tractor? Make repairing it "circumventing a content protection system." This is actively harmful to society, and the special interest group that is Hollywood just doesn't matter enough for it to be a good compromise. Get the DMCA out of here.