Both are conventional stance fighters who have NO power so throwing a "jab" from the back hand side is for setting up other options. To me its not that big of a punch because in pro boxing its about throwing "meaningfull" punches!! If you can't do that then you throw the other stuff.
Tese two guys aren't in the conversation when you consider great right hand punchers, this just gets silly at times! No offense to the OP but whats next how nice their color coordinated? Have any of these two thrown a right hand that looks like Marciano's hitting Walcott? Thats a right hand! KO! Not a right hand "jab"! Ray.