Ain't that the truth. I learned that not because I recognized it my day to day as a student, but because I had one or two teachers in high school that were absolutely exceptional (I was lucky, some kids encounter none) and the droning background noise of the rest of education became very stark in comparison.
It's impossible to teach hundreds of students a year and make everything fantastical the whole time (not to mention that some kids will never give one f*ck about US History or whatever their natural predilections dictate) but man oh man does the current Common Core driven, test-everything, no-rote-learning-except-test-all-rote-learning way of looking at education just crush students.
And you don't have to ask a student - most teachers today will bemoan the degree to which their hands are tied to properly educate and, more importantly, make learning fun, by bureaucracies run by educational theorists who have never spent a day in a classroom.