Thanks for buying one of our plans and for writing to us with your questions.
The answer to your question is that 8 weeks is too short of a time to cycle through all the major training periods. As a consequence we use power endurance training which will have some power training effect while it is more specific in its development of endurance.
So, 8 weeks is a compromise and not a fully developed long term program which would be 12-16 weeks at least. The problem is that most climbers will not want to train for such a long term program so we shortened this one.