I wasn't sure what your point was Nayan. If you are interested in the plan then I recommend reading up. The 4:30 debutant and the 2:45 aspirant will equally carry a lot of fatigue and would most likely be as likely to get a cold as a P&D plan. These plans all fall off the Lydiard branch. Same principles, different execution.
It is a common misconceptions that there is no place for a 20 mile run in a Hanson Plan - go look at the 60-80 mpw off the shelf plan. Don't rely on a couple of internet articles written several years ago by Running Times and RW.com.