You cannot just implement the royalty free web standard specifications and expect the web to work. You also need some corporate agreements.
Arguably this isn't really worse than needing flash or silver light. But at the same time it looked like these were on their way out and that the battle for a 100% open standards web was being won. And Flash & friends could be installed by end users, while CDMs need to come bundled in the browser. Also, in web standards circles, flash and co were considered problems to be solved, while EME is presented as the solution.
So if you're a new browser vendor, and have an inovative (and legal) business model, either Hollywood likes it, or you will not be able to support the whole web.
If you've ever thought DRM made no sense at av the tech or crypto level, read that to see that you are right but focusing on the wrong aspect, and that strategically it makes perfect sense (and is even nastier).
Everybody already knows that. But Hollywood can't actually admit to that because it's blatant cartoon villain-style robber baron behavior, so they keep insisting that the purpose of DRM is to "protect content" from "pirates." Which means we have to keep pointing out that it has never done that.
Their actual reason for pushing DRM is why we need to get rid of it.
They also want to use that content in unapproved ways, for example to extract keywords and links. They then serve this unlicensed information publically, with their own ads.
Thankfully, we can put a stop to such wholesale commercial piracy by encrypting our content using EME.
</sarcasm>
The web already has that kind of DRM and always did: robots.txt, enforced by social convention rather than encryption.
And yes some companies ban crawlers and try to get their content out of search engines for questionable reasons. More often, they try to strongarm Google so their content is still there, but they get paid for the privilege, which is not a reasonable approach and thus not supported by the robots.txt "DRM" protocol.
<sarcasm-against-strawman /> tag.
> Although some of the biggest tech corporations in the world today support EME, very few of them could have come into being if EME-style rules had been in place at their inception.
Why is that? It looks like EME is just about streaming video - how would this have prevented Apple/Google/Amazon etc from coming into being?