They currently are leaving it, there is a lot of content I can't get through a web browser that I can through a native app or through a plugin player.
The web is a proprietary app controlled by the w3c, who are mainly Microsoft, Google and Apple.
You can believe it's an open platform, but if that's the case it should be easy for you to block DRM ;) Good luck
The web is not proprietary, not an app, and only to some extend controlled by the w3c, which is much more than Microsoft, Google, and Apple.
Well lets see if DRM makes it into HTML5 then.