Comments like this make me realize every physics teacher and prof I ever had was a hack who just taught cargo cult. Why is the general intuitive understanding

Comments like this make me realize every physics teacher and prof I ever had was a hack who just taught cargo cult. Why is the general intuitive understanding of these things so rare that it is not even the norm to teach it? (I have yet to encounter an explanation of the Legendre transform that convinces me the person actually understands it as something more than runic manipulation)