I'm definitely on board with this as well. I'm not sure how hard the licensing would be to obtain, but I think the 2K series had the WBC in at one time.
I usually play The Show until the fall when all the other sports games start coming out, but this year I've played The Show much more this time of year and plan to keep playing when I can until 17 is released in the spring.
If they added the things mentioned in the article, it would only help an already great game franchise. That being said, I really hope some of the fielding issues and commentary get the most attention this time around.