The fact that they are talking and what they are discussing? Yes, that should be in the news. But the back and forth publicly about the details? Hell no. Especially with China. They needed to be called out, so did Europe and Canada. But doing so through the media puts the other leaders in between a rock and hard place, as they all will want to 'save face'
For the final time... The Fed is NOT SUPPOSED TO LOOK AT THE MARKET. That is not their mandate.
For the first time, Powell was not just looking at the market. He has a wide range of economic indicators to learn what is happening. The Fed Dept has volumes of data they pour through every day.