I mean, his argument has very little logic. He's just using numbers to tell the story that he wants to hear. "Correlation doesn't imply causation"
Generally there is sufficient distance from other people when gassing up, so that seems like a very low risk for a short period of time, compared to walking in a city.
You are also at risk of requiring ambulance transport if you do DIY work at home. So best just sit in a dark room because you don't want electricity workers to have to go to work, or Netflix employees to have to go into work, etc.
If you think a pandemic is the time to start major DIY projects then you really don't get it. You're not alone in that, but that doesn't make it smart or right.