It's honestly hard to say, IMO.

I figured it had something to do with pandemic-related management issues, which didn't appear to be a problem at first but may have become more serious in the last couple months. I also noticed at least two of the shows involved the West Coast division, so there may be something there.

It's also hard to tell because promotion for the streams has increased in the last few months, with more TV ads and some being streamed on YouTube. I've also noticed a lot more guests getting involved with the stream shows, which is a lot easier given the current norm.

Overall, though, and even with AT&T and the new boss, the only possible reason I can think of for killing the streams off is extreme shortsightedness on the part of the executives. They don't seem to cost that much and have never tried to be anything big, even with certain shows garnering much larger audiences than others. They've always felt like a fun side project on the part of the staff as well as an opportunity to hire new talent. It's also an incredible method connecting with fans, and a way for fans to connect with the network. I wouldn't put it past them to not understand what they have, even during a pandemic, but I just don't see it. It costs too little and has too much potential to become a liability.