On the contrary over the last few years we've seen vendors start to converge on web standards (HTML, CSS, JS) [2].
We've seen the development of crucial technologies for rich multimedia / interactivity on web apps like websockets (RFC 6455 [3]) and WebRTC [4]. Things like an open browser automation protocol is helping devs build cross-browser apps [5].
Also, 1) we're up to RFC 7639 in the official list [1], so that's about 2000 RFCs since the one you mentioned in your article. 2) RSS is not a protocol 3) vendors are building completely open source tools (e.g. Facebook & Google with React & Angular.js) 4) "companies now deliver one half of their application and some custom protocol over HTTP and never mind inter-operability with other services or playing nice", really confused about this, do you have any examples? 5) Are you suggesting that HTTP is transport layer? Because it's not [6]
[1] http://www.ietf.org/download/rfc-index.txt
[2] http://caniuse.com/
[3] https://tools.ietf.org/html/rfc6455
[4] http://www.w3.org/TR/2015/WD-webrtc-20150210/
[5] http://www.w3.org/TR/webdriver/
[6] https://en.wikipedia.org/wiki/Internet_protocol_suite