Wait, "react week"? In what way is trying to cram learning react into one week a good idea? Especially if someone is already unfamiliar or struggling with clas

Wait, "react week"? In what way is trying to cram learning react into one week a good idea? Especially if someone is already unfamiliar or struggling with classes and functions and using the tools. I've seen experienced programmers not really grasp react in a week. This feels like a "if we skip all the fundamentals to train 'marketable' programmers as fast as possible then they struggle with fundamentals" problem.