When using a DSLR as a still camera for events, having essential controls on physical buttons with no lag is critical. Meter, stop, focus, fire. Eyes on the sub

When using a DSLR as a still camera for events, having essential controls on physical buttons with no lag is critical. Meter, stop, focus, fire. Eyes on the subject, sometimes through the finder. If Canon sacrifices any of that for "extra" features, the pros leave for Nikon. And vice versa. These are still cameras first, everything else second.