I didn't really have a problem with it. I thought both announcers did a very good job. And for me the picture quality and sound was excellent, even casting it from my phone to my TV.
The announcers are excellent - that's not the issue. The complete lack of any other sound makes the whole thing sound minor league.
I'm not sure what other sound you were missing. I could hear shoes squeeking, ball bouncing, whistles blowing, players talking, PA announcer....