Well, it is more intuitive for a glider where it's obvious that pitch controls both speed and height.
It would be possible to build an aircraft where power influenced speed substantially and where you wouldn't be able to change altitude without co-ordinated use of the elevator and throttle. The fact that we don't build aircraft to fly like this is ultimately a design decision.
Last edited by abgd; 11th May 2012 at 23:25.