The only thing that renders in Lynx is an RSS link.
So I have no idea what this is, but it's not accessible.
Edit: Just viewed source and wish I could unsee it. Meteor.js :/
Because it's the standard terminal browser, and it works well for reading the vast majority of web content that I care about in the terminal.
No one is saying to design for Lynx; while in the minority, much more than the "incredibly small" Lynx community cares about websites degrading to better than a blank screen when Javascript is either turned off or broken.