Issue with wpmudev Intermediate Course

I am working through the WP Intermediate Course and it seems like someone has gone through it and changed a bunch of things but forgot how to proofread/check that it makes sense after the fact. It jumps all over the place – there's a section where you delete a few lines of code but then later on you need it again, then the next video asks you to do something fairly obscure but shows you no solution with which to get there.

The CTA video has instructions for something different than it is asking you to do so it is REALLY confusing.

I'm definitely not ready to jump into the advanced course but now I am toally confused because this course is all over the place!