I don't know how it's been for your guys but for me, It seems the more I learn and research these frogs, the more confused I become as time goes by.

My idea was and is that these frogs are an inter-grade between the two. Maybe not F1 or F2 hybrids, but generation after generation for who knows how long of interbreeding. There's a subspecies of Phrynosoma that was formed through long term integration.
Just throwing out my theory.