It's a fact that coaching is a dictatorship. However, the amount of control coaches exert on the athletes during a game is directly proportional to the amount of trust that has been developed. A coach who feels his players can't win without micromanaging their every move, IMO, has not done his job. Fortunately, my DD never had to deal with that type of coaching.
I respect a quiet coach who merely gives his players hints about things that would be nearly impossible to remember every detail about... like an outfield shift, tendency to bunt, steal threat, etc. A catcher should not blindly call pitches on a whim, but base her decisions on training of what she sees about the batter, the situation and her pitcher, etc. When in doubt, a glance to the dugout coach can prompt a hint. That's not micromanaging - just smart coaching from a coach who is confident in his player's abilities. A catcher "learning on the job" calling a game should not compromise the team's effort to win - provided the coach has instructed her to take advantage of "hints from the bucket".
When I posed that question about pitch calling to several Ohio DI college coaches during DD's recruiting, I received pretty much the same response as Doug quoted. However, the majority of coaches stated that they NEVER let the catcher call the game, and a few also said pitcher's shaking off pitches was a no-no. Like the college coach quoted by Doug, the coach reserves the right to take over at any time.
Anyone is free to call any college coach they wish and make their own judgement. What you do with the information is up to you. But I think the theme you'll hear is that ALL college coaches want prepared, knowledgeable athletes - I just happen to think that pitch calling forces catchers to "buy in" to what's happening in games... the WHY part.
I think a challenge would be to find a DI catcher who went through 4 years of college play without thorough knowledge of knowing the how and why of calling pitches; blindly calling pitches as they were signaled in without any clue as to why. An even bigger challenge would be getting said DI catcher to admit that they were not qualified to call a college game when they were recruited, and the coach was aware of it.
It would be interesting to hear in a few years from those who feel it's totally unnecessary for college-bound catchers to learn pitch calling, after their daughters have completed their college play - especially from pitcher's & catcher's parents.