The LE1 and the PP just aren't meant to attract the same buyer. With the tires on the LE1 you will lucky to last 10k and are dangerous under 40 degress. Is that what Ford should have put on the PP? I bet Ford's PP outsells the LE1 4 to 1. Ford took the obviuos choice after all they are in business to sell cars not impress magazine writers and web site critics.
2010 GTRR in 5.0 Magazine [http://www.mustangandfords.com/featured-vehicles/m5lp-1212-2010-ford-mustang-gt-rr-total-fabrication/viewall.html]
2015 White SC, PP, etc....