I went through engineering at a major university and the critical thinking training was negligible. More damning than the training was the prevailing attitude of the future engineers, which was very much a "do I need to know this for the test" and "will I ever use this material in my career" approach, rather than the "how does the world work" perspective which we might prefer to inculcate.
This "tell me only what I need to know" style of approach is fundamentally incurious and easily hijacked by authoritarian schemes. It is certainly not true of every engineer, and definitely not true of the best engineers, but it is in my experience extremely common.
I honestly can't speak to the other commenter's statement regarding artists and relativistic ideas of truth.