Enjoyed your rare "philosophical" post.
True, one sees only trees in the forest. But unless you name the forest you are in you'll get advice on other's forests. Some examples:
- Your course is on Moodle. How many hours? How much of it is on-line?
- What must your participants be able to do afterwards?
- What do your participants teach using Moodle?
- Otherwise, same questions as above.
Whether the participants follow the material you provide: Measuring time is a useless criteria for any "theory" subject, you need to evaluate them!
And the big picture. For me the bigger picture is learning and teaching in general. For this discussion we can say learning and teaching with an on-line component. If that is the forest, Moodle is just a glade!
Whether a formal study of education is required: Isn't it bit late to worry about? Even if you had one, isn't that a luxury, unless you teach education? (Just a philosophical question ;)