No offense taken. While I get what you mean about the language, and while I am a technical person I didn’t digest the full detail of what the patent describes, I do still think there is at the very least a hint of a solid invention in this patent. As I’ve said elsewhere, the key part that makes this novel is the synchronisation of video streams - you don’t just send your video to the TV, you don’t just tell the server to start playing on the TV, the server synchonises a stream between your device and the TV. In particular, this doesn’t just cover basic chromecasting, but the ability to synchronise and stream between a range of client devices and in a range of different topologies, particularly where one device might control the stream for others.
I agree with your statement about EDTX and would inherently be suspicious, but even a broken clock is right twice a day. In the absence of some identical technology that predates this patent, I feel like their ruling is correct in this instance.
However this is a weird patent in that it covers such a wide variety of things. It may well be that some are valid, while others aren’t, yet the nature of the patent is that all are protected as a group.