Does The Verge's Rating System make any sense?

Here's a comparison of the Verge's Rating. The Verge recently reviewed Chromecast and gave it an overall rating of 8.5, Their Apple TV rating is 7.8, the bad points indicated are that there is little content. There's even lesser content on Chromecast yet, we see a higher rating! Both in Content Selection and Overall Score. How does that make sense?

Here's an attached picture comparing the content selection of both the devices :

Apple_tv_review_medium