The mission of higher education in the 21st century seems to be teaching people just enough so that they can be really, really dangerous. And certainly not enough that they might recognise any issues or problems, or the limits of what they know. What you get is weaponised out of context concepts and absolutely no desire to understand.
Yes, and the comments about prevailing orthodoxy etc are also pertinent.
I do think a very slight knowledge of postmodernism has become de rigeur - to the extent that 'nothing is true' is an accepted truism. It's enough to undermine any attempts at figuring out how things work, stops people from identifying patterns (because the world is presented as one random completely arbitrary mess, and individuals as so subjective they are incapable of ever connecting or understanding anything. It's a very disempowering belief system) and discourages questions because the underlying 'truth' of postmodernism is that we cannot know anything for sure.