A good eye for photography and understanding the technical aspects of taking a photograph are two totally separate things.
A good eye means that you instinctively frame the shot with an interesting composition, get the lighting nice etc. That can all be done without the faintest idea of how to operate a camera. Equally, someone can have all the technical prowess in the world but wouldn't spot a great composition if it painted itself pink, waved it's arms in the air, whilst holding a sign saying "I am a great composition" and singing the national anthem.
For example:
"Techie" photographer drives along and sees a nice view. He stops the car, gets out, fiddles with the controls, setting a suitable shutter speed and ISO for the dull and overcast conditions, whilst choosing a small aperture for DoF. He then stands on a convenient drystone wall to shoot the hills beyond, using hyperfocal distance to get everything sharp. Three minutes after stopping, he is back on the road pleased with the lovely landscape he has just shot.
A few minutes later, "Haven't a clue" photographer happens along and pulls into the same parking space. He takes out his fully automatic compact camera (or even his mobile phone) and looks at the view. He stands back away from the wall, to include it in the shot because it will 'look cool' in the foreground and he just likes the way it leads his eye into the shot. The scene looks flat and uninteresting though, because of all the clouds, however he sees a small patch of clearer sky approaching and decides to wait a few minutes. Ten minutes later a few shafts of light come through the gap in the clouds and illuminate parts of the scene. He grabs the shot and continues on his way.
Who do you think got the better shot, the guy who knows how to use his camera, or the guy with the eye for photography??
Of course, sooner or later "expert" photographer will come along, take the shot with all his techie skills, use the great composition and get the good lighting, even if he has to wait all day. He will get the best shot in the end.
A good eye for photography is the most important thing and will beat simple technical knowledge hands down. Some time ago, I saw an online portfolio taken by a complete beginner, on his mobile phone, around a city somewhere. It was some of the best street photography I had seen in a long time, the guy had never done photography before, had no knowledge of it, but could 'see' a great image a mile away.
Now, combine that sort of an eye with the knowledge of how to control various factors, such as perspective and DoF, and how to creatively use shutter speeds and apertures etc., and you have a great photographer.