In my experience, there are advantages and disadvantages to both schemes. The Touch controllers are more immersive, but you can't "rest your hands on the yoke" like you can with a joystick and there's no meaningful tactile feedback like how a joystick "pushes back" against you manipulating it.. Sopwith VR used the touch controllers for instrument manipulation, and it made for a very "floaty" and disconnected piloting experience.
But in War Thunder, it would have been nice to be able to use a touch controller on my non-yoke hand to be able to reach up and manipulate the instruments (throttle, radar, mixture, prop pitch, etc) since it had fully "real" gauges and what not that actually conveyed information but had to be adjusted like a real plane... and it sucked to have to do that blind on the keyboard.