The design of the bowl is supposed to avoid doggies wetting their (long) beards since the beards won't be swimming in a big pool of water.
Well, it does its job BUT me just love to flip my tongue left and right on my beards right after drinking. So that still wet my beards somewhat but it's a big improvement. With regular bowl my beard was dripping water at times! Been using the bowl for a good 3-4 years now.