I agree. Not only is it lacking the last time each individual repo was updated, but it seems to be ordered by how many people are watching it rather than what language it's in or when it was last updated. It looks like the only things it adds are the nice, at-a-glance repo language colors, the three last-updated repositories, and— in the case of bootstrap and hogan.js— links to the project's github site under twitter.github.com rather than its github repo page.

Nonetheless, it looks fantastic.