Yeah I've undertaken coursework before. Until this world understands why those who can do will do rather than teach (until teaching rewards at commensurate or better rates than doing), teachers who can do will be at a premium so rare their existence will be all but negligible.
Workshops are different. In theory you laern just as much from your fellow students as they critique your writings. It was the only workshop I've ever taken. It is much like you posting on here for our feedback, but people are forced to do it as part of the class. Much different than relying on strictly the opinion on a sole teacher.