I understand. The point I'm making is that frequency is a factor that prevents someone from accomplishing a task within a month. If a beginner (or anyone) has a frequency of 1 lucid every three months then they are rarely going to accomplish a task, especially when they keep changing, which is demotivating. Which category do they choose from? Frequency is an inhibiting factor along with short lucids. If you set tasks according to a single defining point you're excluding a whole category of people.