As a fulltime functional programmer... I cannot ask university graduates to learn functional programming to the depth of SICP teaches.
Even the "Scala redbook" is 50-100 hours of work.
Junior graduates, have so, so, so much information to cover.
Bashing a "good" development workflow/flow state into them. Communicating with correct nouns. There's SO MUCH work for them to do. Plus, output they're paid to produce.
Functional Programming, manipulating higher order functions, is useful for reasoning about truly complex concurrency.
Hard to justify the time investment otherwise.
There's SO much work to do in software development.
As I understand it, no freshman class ever made it through the full text anyway, so it was always understood that you can go further later, and come back to it, similar to how much undergrad calculus is taught.
I was a grad student in the late 80s and early 90s, and I remember having classes that took this approach. It took me years to recover and repair the damage. Understanding how a real OS works is not actually that hard. It's actually easier if you start with that than what I went through, which was a bunch of abstract academic bullshit that left me with no idea how it was supposed to make contact with reality.
I believe it's a bit similar case with many other topics nowadays. Having some basic Python skills unlocks opportunities in other fields, such as machine learning or robotics.
Everything is build from pieces and pieces are explainable. Ocasionally you have hard algo but still you can understood what it do becouse it do exactly what simpler algo for that problem do.
Btw. there is not so much material in SICP - some tricks like lazy functions implementation and symbolic math. From that point of view it's good introductory course to compilers building :)
It the late 90’s computers and operating systems were already so complex that you did not start CS curriculum by understanding how they really work. You took those for granted to get to the interesting topics first and then later went for the details.