Xbox System Update that fixes issues for Smartglass users

Recently, the Smartglass app was out for the tablets and smartphone devices but there are flaws haunting them and especially for the Xbox Music which has the flaws regarding the playlist name. In this update that was recently out two days ago in the western timezone, the issues regarded the incorrect playlist name when launching the playlist from the app to the console, the Video Closed Captioning and other issues in Xbox Music the users were experiencing. So, where the hell was product testing by then before calling this fluid enough?