There are some use cases where the X1C is preferable to the Xpro, but they are few. (BTW, the Xpro isn't as refined as the newer "Flashpoint R2 Pro MarkII", so I'd look at that one first)
No question, it's far easier to see and change settings on the XPro or MarkII, but if, for example, you were going to be changing flash settings never or infrequently on a shoot, the advantage of the Xpro are less obvious.
The X1C is smaller and allows for a speedlight on top. Its interface is clunky, but once you get to know it, it's easy to use.
The Xpro / Pro Mark II) is definitely easier to navigate, but doesn't have a shoe for an on-camera speedlight.
I carry one of each, which gives me backup as well as options.