My point is extremism can always be found. Just like i as a Shafi'i would let my daughter marry a pious Hanafi, so would many Hanafi ulama pray behind Imam Shafi'i, Nawawi, Al-Hafeth etc even if he only did masah on small part of the hair, or didn't take water into mouth and nose while doing ghusl or something similar which can be done according to the Shafi'is.