There is the w3 and other standards comitties joined by industrie leaders and a lot of experts and public eyeballs. Chat hardly compares. Perhaps the W3 should concern itself with chat. The IETF released SIP. The w3c offers IRC channels.

A broken browser is a pain, new standars improve the user experience (e.g. html video). For the public user there is no discernable difference in any basic chat's protocol and implemetation.