Deutsche Telekom’s zero-rated streaming service StreamOn has been ruffling the feathers of German regulators ever since it debuted in April last year, with various cries of net neutrality and roaming violations. A year and one month after the service was first accosted, the Administrative Court of Cologne has confirmed accusations of the German operator being partly in the wrong – meaning certain elements of StreamOn will continue to be restricted as they have since December 2017. So while the US equivalent Binge On has been repeatedly blasted for throttling content down to 480p but continues to operate in full swing, StreamOn’s fatal mistake was the act of not fully applying the concept of zero-rating when leaving Germany, as StreamOn began…