To be fair, in our world, once it's out, it's out for good as well, just grab the WEB-DL torrent.

In that world there is still the first mover incentive, if it takes users a week to get the file, you've won. And there would also be a sort of "second mover incentive" to not publish instructions/tools for cracking the DRM since you can legally put up a cheaper competing DRM-ed streaming service by "stealing" content from the first one.

CC: @eric@pl.starnix.network @Suiseiseki@freesoftwareextremist.com @maija@netzsphaere.xyz