I noticed it as well... I don't want artificial turf of any kind but the field looks like it's already had a season of games played on it. I know they put new sod down earlier this year, it doesn't look like it is has worked out.
You are absolutely correct. Bermuda does not like extreme cold. It wrecks the root system. It looked very spotty on tv...worst I've remembered seeing it, especially this early in the year.
I would be all for some field turf. The newer stuff looks and feels amazing.