I feel it might be stupid idea but it is not impractical.
The effort of extracting content should be less than the maximum value that can be generated by redistribution. Thus, returns from piracy diminishes as you go from softwares to video to image to text. The effort of extracting an image is too easy via analogue hole. This is assuming an open technology ecosystem not exactly the RMS world but at least Linus or perhaps Mozilla. The enforcers of the DRM do the sensible thing of spreading their proprietary black boxes to as much people, until, they can shut down their doors to the rest of community. That is precisely when certain open source foundations too had to back down. That is how you can enjoy netflix only within your chrome browser.
What bothers me is why are they trying to make it into the standards. If it is built into the standards, it will be built into the downloaders as well. Remember what happened with HLS AES encryption, it is now built into the video downloaders itself. While I understand benefits of standardization, how it has given shape to tech, it might not be true with something so un-technical as DRM. If you do want obfuscation, at least do not make it standard procedure. You know very well that the strongest DRM can not be technically secure.
> I feel it might be stupid idea but it is not impractical.
They are willing to fuck everything up to extract more royalties. Don't worry that you can't have a 100%-solution DRM now. When we get to the level of advanced optical implants or even brainchips, I'm willing to bet MAFIAA will be one of the biggest investors, in order to sneak in a DRM processor directly into your head and then force you to consume content only through legal and paid-for MAFIAA-certified brain chips.
Humanity is going to learn some very hard lessons if that class of technologies ever pans out.