Everything that you said has to do with those in supervisory roles directly over the people whose performance matters: that's NOT us. FROST needs to have high expectations of his players, and that needs to be communicated to them constantly in positive, measureable, achievable ways, but that has ZERO to do with what the fans should "expect."
Take your law enforcement background and think of it this way: While it's great and admirable that YOU had high expectations for those under you, would it have helped your cause if the people in your community expected you to be perfect? If they thought that you had no reason for ever making a mistake, would that help your cause? Any unsolved crime is on your head. Anybody found innocent in court is on your head. Hey, they should have high expectations, right?
You're conflating expectations from two different groups of people, and even in the example you used, that still would be bad.