On the contrary! I work on the IE team and we're playing along nicely. Google just joined us on the ORTC spec, which Chrome considers to be essentially Web RTC 1.1.

http://www.cnet.com/news/reconciliation-draws-closer-for-sky...

For IE implementation status, follow along here: http://status.modern.ie/webrtcobjectrtcapi

and check out our ORTC prototype: http://html5labs.interoperabilitybridges.com/prototypes/obje...