So, my son's experience (albeit 10 years) ago did include college coaches calling his high school coach and travel coach. Specifically, these were what I call "character calls" not performance calls. They wanted to know what kind of teammate, leader, and about his academic and athletic work ethic. Additionally, I've known others like my son (who I've helped with HA recruiting) over the years who's high school coaches have received similar calls.
Just my experience....
My experience is the same as yours Fenway