According to Daring Fireball (http://daringfireball.net/2017/01/new_app_store_review_features http://daringfireball.net/2017/01/new_app_store_review_featu...),

According to Daring Fireball (http://daringfireball.net/2017/01/new_app_store_review_features http://daringfireball.net/2017/01/new_app_store_review_featu...), at some point Apple will change the rules so that this new API is the only way apps are allowed to ask for reviews, but right now there's no timeline for when this will happen.