If it becomes possible to get the key and decrypt content in a user-friendly package, it enables downloading of content from smaller providers that currently is

If it becomes possible to get the key and decrypt content in a user-friendly package, it enables downloading of content from smaller providers that currently isn't pirated widely. I used to work for a commercial Belgian broadcaster that puts almost everything they broadcast online for 7 to 30 days after broadcast, and heavily uses Widevine L3 (along with PlayReady and FairPlay). Their content isn't popular enough to be widely pirated, but before only offering DRM'ed streams episodes would often hit YouTube as soon as they were put online. The broadcaster isn't big enough to be targeted by 'professional' pirates. If users once again get the opportunity to use simple downloader apps/extensions to get unencrypted video files, it's going to mean either a revenue loss for the broadcaster (as people will go to YouTube to watch ad-free variants), or users will lose access to content on devices that don't support Widevine L1 (which is unlikely to happen as it'd exclude Chrome, for example).