IIRC, DishAnywhere (old version) used Adobe Flash which Adobe abandoned development of four years ago. So, Dish and many other video providers have to change the entire way their streaming works or let us use a streaming player that is vulnerable to hacking, etc.
OK, so if they replaced the player that would be great. They didn't have to completely screw up the guide and the DVR menu, force streaming options into the DVR lists, get rid of the Live TV button, get rid of the remote feature, and all the other negative changes they made and features they eliminated.