You make some good points about sitting in the booth all of the time. If professional players sat in the booth all of the time, it would be difficult for them to remain focused on the match.
I have always believed that the best commentary comes from constantly rotating commentators whether they be professional players or professional commentators. If you sit in the booth for 12 hours a day, you will start to sound like you have said the same thing over and over and probably are. lol.
The best combination comes from a commentator and a professional pool player who get along well with each other without any facade. As a commentator, I've also always believed that it is important to make the professional player look their best. Asking questions that you know would be important to the viewers is one way that commentators make the professional players shine and I enjoy doing that, especially when a pro player is kind of mike-shy.
The fact that you don't see professional players in the booth very often speaks volumes about how difficult it is for all commentators to sound fresh, intelligent, interesting and entertaining every match of the day.
I wish live streamers were like Dustin McCollum, who Jay Helfert introduced me to many years ago. Feeding quality information through the headset (without the Internet viewers knowing), makes the commentator sound knowledgeable, fresh and keeps everything interesting. Dustin works in television and realized the value of this and used it in his productions. If live streaming were more lucrative for the streamers, they might be able to afford to rotate in fresh commentators and devote time to ushering in additional data incognito through the headsets.
JoeyA
I would much rather have the players commentate than commentators who are in the booth all the time. It's nice to hear things from the pro perspective. Commentators who commentate all the time are too comfortable, lose focus on the match, and generally don't play to the same level as the pros so they have a different perspective. There are a few exceptions. Thorsten did some of the best commentary I can remember.