Possibly. If I recall the polarized plans were, and still are labeled Experimental? In my mind that’s not the same as beta. There is a thread where the goal was described as aligning with the recommendations of researcher Dr Seiler. But Dr Seiler isn’t a coach. It is all a bit confusing IMHO.
Beyond the obvious ‘your ftp might be set too high’ there might be a few other reasons such as fueling, overreaching, recovery, etc.