That's what I actually like on the more "expensive" camera's, the ability to control everything just with single click/rotation.
I'm mostly shooting manual, on my Canon 5D I have a dial for apperture, smaller dial for shutter speed and a knob for the focus point(s). When I used Canon 500D from my friend, I couldn't use it in manual as this requires you to push one button, to then change the shutter speed with a dial (the same one that controls the apperture (or vice versa I can't remember anymore)).
But I think canon is doing it alright as the "entry" level DSLR's like 500D are meant for normal users who just want a point and click camera for most of the time, and don't need that many knobs and dials. While the professional versions have a lot of controls.
But then again, this all goes to personal preference, and most users will buy a camera that they like to use, with or without many controls. I haven't seen anyone with a 5D saying "I'm not happy with total control of my camera", but I heard more people say "Damn, I wish you could change this value much faster and not go to the touchscreen"