I think it's more of a case that the TARDIS has the controls it has, and although can change the desktop design of how the control room looks it still has to have the same amount of complex controls for it to work properly. It's like playing a piano for example, the designer know's you only have ten fingers yet there are more than ten keys and to play it well your fingers have to dash about the various keys, much like the doctor with his console. The TARDIS most likely could configure simplified one person controls, but would still be as complicated a machine with the same amount of functions, so as a result he would likely have less control over it than he does at times now.

One thing I do like about the latest incarnation of the console room is the way the Police Box doors are set back, in an alcove.

This is what I always thought was on the other side of the big double doors the classic console room.

They would walk out of the console room, through the big double doors and there would then be a small alcove leading to the exterior Police Box doors.

I always imagined that too. But in the early days - those big doors would open out instantly to the outside world. Made no sense at all. But who are we to argue with the Tardis and its configurations! (I blame Logopolis)

Personally, I loved the ORIGINAL Tardis interior - warts and all! HUGE room with a few antiques spread around, a couple of chairs and the console in the middle. Nice 'private quarters' through the double doors, complete with 60's settee and a food machine at hand.
Those roundelled walls were classic (even though they never matched-up......but we don't talk about that!! )