Did I just stumble on a SECRET strength of John BRZENK?

Hey found this to be quite interesting! I haven’t heard anyone talk about this or even train grippers this way with as bent of a wrist. Would love to hear peoples thoughts! I know I’ll be dipping my feet into getting stronger in this way, I feel like it might be a good tool for dominate hand control!? Anyways peace and love you all! The photo is from the IRONMIND website 👌