I dislike pockets on dress shirts as well, but not for reasons of symmetry. By your logic, suit jackets should have no (or two) breast pockets, buttonholes on each lapel, and should never have a ticket pocket. I presume you don't like FIH knots, either? Sometimes, there is beauty in asymmetry. I don't have a strong preference either way regarding plackets, though.
Anyway, I don't mean to derail the thread. That Vincenzo di Ruggiero shirt is gorgeous.