As long as they don't quote it verbatim they are fine. You may write a blog post about what you learned in the class… The issue here is the scale at which they

As long as they don't quote it verbatim they are fine. You may write a blog post about what you learned in the class… The issue here is the scale at which they do it. I don't have MasterClass so cannot confirm but it seems that at least parts of it are straight up parody e.g. How to Make Perfect Scrambled Eggs/step 13: Train as a chef in France