Thanks a lot for your reply. I've actually seen your earlier edit specifically mentioning different front/rear tire and it captured my attention because I was already thinking it's somewhat odd especially for gravel riding to be putting same tread style (unless it's fully symmetrical) on both. With rear one wants primarily keep traction for the radial/tangential forces, but failing to keep axial forces in check it's always possible to drift a bit, however with the front the axial forces that could cause a washout is something to be actually worried about, while in the radial/tangential direction I could only think of braking making a difference, especially with the front wheel.

I was actually looking at the SpeedKing CX and the Terra Speed for the same reasoning.