[josteink]

I'd say HTML5 DRM is the far lesser evil in this case.

Completely disagree. HTML5 DRM is non-interoptable but disguised as interoptable through its HTML form. That makes it much, much worse.

[acdha]

You have fundamentally misunderstood the proposal: it standardizes only the interface. It promises nothing about forcing interoperability — only a focused, more secure replacement for NPAPI.