I disagree with that very strongly. I don't want to have to install 100+ desktop apps (and hope they're available for my OS, and up-to-date) to be able to use every service I interact with. If GMail, GCalendar, HN, GitHub, CircleCI, Google Docs, Slack, and every other web application I use every day were not in a browser, the world would be a much worse place. But all of those applications are built upon that pile of hacks, and much harder to write an maintain than they should be.