McGregor connecting with anything at only confirmed that Mayweather really is over the hill and wouldn't last too long with any of the current champions or decent contenders, but I'm not critising him, he's played the game to perfection all through his career but time has caught up.
Apparently McG caught Mayweather with more punches than Pacquiao did. Surely that proves that it's time to pack up as well as showing Mayweather had no respect for the punching of McGregor.