Wow, lot of hatred for Vince McMahon here.
Talking Smack was cancelled because no, it wasn't free. It has production costs, staffing costs and Young and Bryan potentially earned a bonus. It also meant that wrestlers were spending less time moving on to the next time and more time hanging around for an interview so it wasn't popular with the wrestlers.
It was cancelled, ultimately, because nobody watched it. It's the same with Unfiltered, unfortunately. WWE let Renee Young have the show as an experiment to see if the different format could get views. It didn't. She left Total Divas because she's not the one they wanted to get on there in the first place. WWE have been trying for years to get Dean Ambrose to market himself like the star that most fans think he is but he won't do it so they can't push him.
Talking Smack was a great show. I loved it. It was 18th on the network when it was cancelled according to Meltzer. Old ECW reboot shows from 2005 were getting more views. There's no conspiracy from Vince. WWE cancelled a show that nobody wanted to watch.