I didn't hear the audio, but I am assuming he said something to the effect of "people/children should wear masks to slow the spread of COVID..."
If so, he is speaking with credibility on an important topic. Weather or not he sucks at wearing a mask or took it off at the wrong time or whatever is irrelevant, no matter how hard you try to pin some disingenuousness on him, if he said those words it is credible. You cannot see into his heart to know what he believes or doesn't believe. I believe that smoking cigarettes is bad for me, I know it to be the truth, and I tell my kids not to smoke but occasionally out with friends drinking away from them I sneak a ciggy or two. Doesn't make me disingenuous about the dangers of smoking.