Yes, but many students are basically at the logo level at that point. They struggle with basics. Then there is huge sudden jump to compiler flags which you call the "wall". But that is exactly what I call bad teaching. There is no reason for that to be the wall, all you need is not to teach them everything at the same time in lesson one. This is combined with culture which tenda to attribute easily learnable skills to "natural talent" - so students conclude "I am not that talent" and go somewhere where they think they are talent.

I mean, you can teach concepts one at a time and still be demanding and require certain speed. I am not saying it should be easy. You however should separate those concepts from each other and teach them one by one. Otherwise you just relying on them to have it "picked up" randomly which is not an expectation other majors have (like physics or math or biology).