I guess thats pseudo DRM. On the other end you have things like RTMPe, a proprietary highly complex binary protocol that is only implemented in the adobe flash plugin binary blob. Or something like HDCP (the copy protection part of HDMI) that builds a hardware encryption platform, with an central authority and certified hardware vendors.
Those are just 2 examples of "strong" DRM, but since even those two have been so thoroughly broken, we can just assert that any DRM that is based on W3C EME is gonna be childsplay. I don't think anyone actually believes that this W3C crap is gonna be "secure".
The EME standard is explicitly designed to support hardware encryption systems that provide end-to-end encryption - think a proprietary decryption black box in your devices that takes an encrypted, compressed video screen and overlays it directly onto the screen output without it ever touching RAM anywhere where software can access it. Good luck breaking that, short of inconvenient hacks involving HDCP decryption and recompression (and those may not be long for this world either - newer video outputs are AES-encrypted).
Those are just 2 examples of "strong" DRM, but since even those two have been so thoroughly broken, we can just assert that any DRM that is based on W3C EME is gonna be childsplay. I don't think anyone actually believes that this W3C crap is gonna be "secure".