This is still true with EME. EME is just an API, you still need the closed-source proprietary DRM module itself, the CDM. You would need to convince/pay one of the very short list of such modules to port it to your device, and you would need to do so with a module that the content creators support.

The same is true for the other things in that list. EME simply does not even try to solve those problems - it just provides a standard HTML5 API to what remains a closed-source proprietary DRM module. There are very few companies with such modules - Adobe, Microsoft, and Google are the prominent ones. Without partnering with at least one of those, you can't bring DRM'd content using EME to a new device.