I guess I don't understand the pedantry. To me, everyone has different tastes and is it really hurting you to make what they want? I mean I cook garlic with mozzarella (and usually 4 or so other Italian cheesed blended together) all the time. I'm an American, I think they go well together, the egg sounds repugnant to me, but if you like it, it's not like I am the one eating it. I can understand a cultural history aspect of preservation but leave that to some society dedicated to racial pizza purity not the every day.
TL;DR - Who cares?