Hmph odd question for photographers?

I met with a local pro photographer today to buy one of her Nikon P&S's. She showed me her work which was incredible. She's even been featured in the Italia Vogue, but she has no idea about aperture, ISO, rule of thirds, etc. She just primarily uses the closeup/macro mode with autofocus. I'm just wondering if other pro photographers do this too? I was shocked to learn this.