Can somebody please explain to me how Floyd Mayweather Jr. beat Maidana?

I just watched the whole fight on YouTube. I feel like Maidana won that one. Sure, Maidana probably missed more and just swung wildly, but I think his volume kind of made up for it. Were they not counting those body shots to Floyd's side when he attempts the Philly shell? I think Floyd did land the more concise shots, but he has no power behind his hands.

It kind of got muddy to me whenever they got in to the clinch though. Maidana kept punching the back of Floyd's head and hugging him. Floyd didn't do much to make himself look like the food guy either. He kept putting his back to the rope, almost as if he wants Maidana to do that to him. Was he trying to fein ignorance and let Maidana get those rabbit shots in to get the judges to reduce his points? I'm not even sure how points work, so disregard this if it sounds stupid. I'm a casual