The corollary to learning is teaching, and this isn't addressed substantially in the article. There is a whole industry associated with teaching / training that goes substantially beyond consideration of individual learning styles. E.g. how to structure a course, training objectives and key learning points, how to do assessment of students (during the training itself, or as summary exams / tests), how to give feedback, and many other points. There is also a load of theory around competence retention (how different types of knowledge and skill fall off over time) and the limits of learnability (e.g. the point at which you should stop trying to cram in something that is very forgettable and supplement / replace training with job aides such as checklists).

Awareness of these things can make a big difference between well structured training material and a stream-of-consciousness YouTube 'tutorial'.