This also accounts for why you see such a noisy contingent of people clamoring for difficult things (ex: software architecture) to be reduced to a discrete proc

This also accounts for why you see such a noisy contingent of people clamoring for difficult things (ex: software architecture) to be reduced to a discrete process: it suits the way they are currently learning, avoids sunk costs in said learning, sidesteps the hard question of, "do I really know this?" and maintains the current social status quo. At stage 3, things aren't necessarily easy, but you have the skills to navigate much larger amounts of uncertainty than stage 1 or 2.