When you’re searching for thousands of TV apps, or millions of phone apps, you want the best. That’s why users are able to rate them and give feedback as to their rating. This is easy to do on a phone, but currently not available on a TV. Users have to rate apps through the web interface, on a separate device, which is a bit convoluted.
Android Police spoke to some members of the Android TV team and the team agreed that it’s something to be added. The current question is the right user experience. Having reviews be typed through a remote is not very good.
The team is working on the feature, but there isn’t an ETA.