good point. ATG fighters usually end up too old/too broke/too late to take up teaching. this type of floyd interview is extremely rare.
He's mentioned before that he'll have a career as a boxing commentator after he retires. Being a highly technical counter-puncher he must spot openings and subtle tactics that no one else is able to see in fights. I know he would do that better than anyone.
I wouldn't make that assumption based on that footage alone. That's a light-hearted training session/interview piece with a complete nood. A trainer in real life can be a real ***** when he wants to get you to do something and judging by how much of a perfectionist Mayweather can be about his technique, he might be worse than most. That's just an assumption though, to really know for sure you'd have to see him in action teaching a young pupil.