I agree. I thought it looked okay but I wasn't impressed. It doesn't compare to the soccer games in the 2016 Summer Olympics or the recent Winter Olympics. But that might have to do with the Summer Olympics being recorded in 8k and being converted to 4K for Directv. The US Open was not impressive either. The graphics looked terrible.
I watched the first game today, broadcast was less than impressive. No announcers, elevated black levels, some pixelation (it could have been the surviving camera). Hopefully we get a better product tomorrow.
Both of the past two Olympics have been much better, albeit not live.