In general, browser vendors all have a history of doing things that stifle standards progress. Pointer Events (which is a good idea) has been stifled, as have

In general, browser vendors all have a history of doing things that stifle standards progress. Pointer Events (which is a good idea) has been stifled, as have lots of other relatively good or promising ideas, such as Web SQL, WebCL, etc. I'm sure browser developers have legitimate concerns about these emerging standards, but I doubt any of these concerns have warranted dumping these ideas.