Statstics is like that. 99% means nothing to the 1% guy to whom it happens. What I quoted was from a book on jet engines. and I am not considering GPWS and alternate law together. Even in in normal law if you didn't know the protections then you'll be hesitant to pull full back stick. And why have GPWS? The aircraft shouldn't be in that situation according to you. But pilots have landed with gear up didn't they? So knowing the difference between having and not having GPWS helps.