You're correct. In Wah to Pitch they're not mutually exclusive. I meant to write: when there is a pitch effect present in a rig and NO WAH effect, the usual Wah controller becomes a pitch controller.
From the manual:
If “WahPedal >Volume” is selected, those two functions are mutually exclusive. As soon as a wah effect is active, the Wah Pedal controls this wah effect, while volume stays flat. As soon as there is no wah effect in the current Rig, or the wah effect is switched off, the Wah Pedal controls volume.
All other pedal links allow you to control their effects simultaneously. So, a Morph Pedal could morph and control wah, as well as pedal pitch effects at the same time, if those links are selected. A Wah Pedal could control wah and pedal pitch effects together, if “WahPedal >Pitch” is
This last quote form the manual clarifies it all - because I just couldn't get why it doesn't work exactly like the wah to volume. Honestly, I still find it odd - but at least now I know it's a feature, not a bug. Thanks a lot