Andrew Ng is my mentor in Machine Learning, it was his free course in Machine Learning that inspire me and gives me the incentive to be an ML Engineer. Although this content is super-rich and deep, I guess something is missing, application of these ideas to real-world data. Other courses like on DataCamp approach it in regard to real-world problems, although their content is not as rich as this. I suggest that DeepLearning.AI provide a project platform where learners can apply these concepts to real-world data.
All of the lab assignments in the ML Specialization use real-world data.