Face to Face vs online
The understanding and learning of business critical concepts and techniques require that the participant is in an environment that fosters concentration and gives the student a sustained amount of time to absorb the information being provided with minimal distractions.
Having an instructor with deep knowledge and experience in the topic provides an opportunity to clarify items of uncertainty and pose questions on the application of the course concepts.
Online education has its place in the overall scheme but material requiring hours and hours of effort are difficult to incorporate into already busy days. An hour or so per day over several weeks will often result in the early material being forgotten.