It's not a better alternative, because it makes DRM too easily accessible. Many companies that would never have used Flash for DRM are now using EME or considering it. Including YouTube, Twitter, Facebook, etc.
In a few years every video on the web will use DRM, and you won't even be able to download YouTube videos.
In a few years every video on the web will use DRM, and you won't even be able to download YouTube videos.