I accept with informationtreaming Presentations
ability to ask questions directly to the artist
a wide range of ideas can be covered relatively quickly
visual examples can help to hit points home without spending a ton of time actually painting the idea
you can get more of a broad theoretical knowledge of a subject, and apply it to the way you paint instead of trying to mimic someone else's approach
Painting and talking at the same time is hard. showing someone an idea through painting takes a really long time, and isn't very well suited to getting the most information out there in the short amount of time available.