I guess it depends on Roach’s definition of “a little shot”. Is Mayweather the same athletically as he was when he was in his early 30s, of course not. Is he still the best pound for pound fighter in the world, for now yes.
If you did a side by side of Mayweather and Pacquiao over the last 7 years, it is Pacquiao that looks like he lost more skill set wise than Mayweather. Neither one is at their peak, but Mayweather is still beating guys pretty easily that a lot of other fighters have had their hands full with. So, maybe his legs aren’t what they were, but it isn’t like he is Roy Jones.
Here is the video via Boxing Scene.