This article by Dan Rayburn, self proclaimed "voice for the streaming & online video industry" has been making the rounds on twitter and briefly hacker news (until it was appropriately downvoted for being nonsensical rubbish). The article is so void of anything which remotely resembles reasoned argument that one could easily mistake it for satire.
Unlike the last live stream Apple did, this time around Apple decided to add some JSON (JavaScript Object Notation) code to the apple.com page which added an interactive element on the bottom showing tweets about the event.
Firstly JSON isn't code, it was JS code that pulled in JSON.
As a result, this was causing the page to make refresh calls every few milliseconds.
You would have to be pretty forgiving with your definition of "few" here.