It's easy: a DMCA takedown ought to require proof of infringement: the burden being on the license holder. As it is now, it's takedown first then the poster of the content must prove their rights. Many of my music producer friends have had their own content pulled on Soundcloud, despite them having both created the song and owned the label that released it!
I think there's at least as much progress to be made via platforms developing solution systems, ala CAPTCHA, password reset emails, the verification system used on swappa.com, "salutes" (verification selfie), verification files... Could udemy only accept videos that have a visual/verbal confirmation "leader" attached with the submission? Yes, confirmation via voice is absurd - but it's a relatively minor obstacle in creation/submission, and quickly triaged for missing or egregiously obvious fakes. This is not some incredible idea, but my point is that when it matters to the web, the web can sometimes create accurate widely adaptable solutions, instead of intractable legalese. The question is, when will piracy (capital M) matter on a cultural level, vs. primarily being a concern of groups that are sometimes not even acting in the best interest of the people they represent.