The courses (for instance Deepening Relationships) demands quite a long time for each lesson. I guess doing one of the exercises a day would be better than being put off by the time requirement and doing nothing.
Perhaps it would be as simple as stating that I need 5*8 minutes and a pen instead of 40 min. Or is there some kind of deliberate thinking behind this? That I need to do an entire lesson in one sitting? In that case, explain that science so I know why.