lol at people talking about a whole 4oz difference in glove size like that was the reason for Conor's lack of power. A big puncher is a big who will hurt you and has the ability to KO you even with 16oz gloves. And while the difference in stances between boxing and MMA will make some difference, it won't affect your power to the extent that people on here are trying to make out. Certainly not to the point where you go from being considered a big puncher with an 86% KO/TKO ratio, to being completely feather fisted to the point that someone 20lbs lighter than you can easily walk through everything you throw like it's nothing.
Here is Conor sitting down on his 'deadly left', setting it up with a reverse one two, turning the shot over, pushing off his back foot and actually going for power
Yet Floyd effortlessly parries it away like it's a little weak range finder jab. Because compared to what he's used to dealing with it's absolutely nothing.
There are levels to this kind of thing and by boxing standards Conor just doesn't punch very hard at all. Accept it and move on.
