The objection is that the standardization process is too slow. Not a little bit too slow, but so glacially slow it's almost indistinguishable from abandonment. So, progress of key web technologies needs to be put into vendors's hands.
CSS border-radius is still not a W3C recommendation. It's been a draft for nine and a half years. So far. It was last updated one year ago.
With a standardization process that broken, vendors need to take things into their own hands, and them doing so, especially webkit doing so, has been an astounding success, IMHO.
Yes, but why does it matter that the standardization process is slow? What is the practical relevance of something moving from "Candidate Recommendation" to "Recommendation" status? Why are draft standards any worse than vendor extensions?
CSS border-radius is still not a W3C recommendation. It's been a draft for nine and a half years. So far. It was last updated one year ago.
With a standardization process that broken, vendors need to take things into their own hands, and them doing so, especially webkit doing so, has been an astounding success, IMHO.