At the start of the school year, I am reminded that the "it's in the syllabus" folks are the same folks who call IT/ administrative assistants/ others rather than looking it up on their own.
There is no assurance that a lesson in which the educators intends to teach (for example) how to solve quadratic equations will actually result in students being able to solve them, recognize them in their contexts, and be able to solve them on other contexts.
I used to respond to the "what if you don't have a calculator?" folks with "make an estimate until you do get a calculator." Now I can just say, "use your phone."
I work in educational technology. I spend many hours listening to folks complain about the existing technology and explaining why the replacement is worse than what they have now.
"Most predictions are wrong, so we should ignore them all" seems bad advice. Maybe we evaluate them, question the assumptions, check the reasoning, and validate the data rather than ignoring.
Throughout the industrial age and into the information age, most of the knowledge and skills necessary to be literate and numerate were relatively known and stable. That has changed in the last generation.