If you read the history of that bug someone rightly points out a key thing is MS have to support the pen on surface, and that was as important to MS there as multitouch was to Apple with iOS. Mobile performance is clearly that to the Chrome team, and this mismatch of priorities is what is at the root of the problem.
Don't kid yourself. Sometimes it's the IE team that refuses to play along. Example: WebRTC.
Overall I feel that the cooperation between vendors on standards is quite good. but you can't expect all these mega corps to agree on everything all the time.
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...
Every vendor fights their own turf battles. Not-invented-here seems to also be a big issue in standards committees.
From the source:
>Pointer events would likely never supplant touch events on the web (especially without support from Safari). Since touch events are here to stay, supporting another largely redundant input model has a high long-term complexity cost on the web platform.
Sounds to me like the Blink time is trying to use their say to reduce fragmentation and they've taken the side of practicality. Rough consensus and running code indeed.
The other points seem equally sensible to me (at least at first glance) - and a long way from "ignoring each other as much as possible while pursuing their own improvements"