He puts it nicely and even gives it a name
“When making general statements, it goes without saying that degrees, exceptions, outliers, and edge cases exist. It also goes without saying that the existence of these in no way invalidates statements that are true the overwhelming majority of the time. As such, when making general statements, there’s normally no real reason to bother bringing those things up.”My favorite example of how this plays out in the typical mushy head was an exchange in a comments section
A writes: Every test measuring general intelligence shows that Blacks in the US have an average IQ of around 15 points lower than the White average.
B replies: Well, I have a Black neighbor who's an engineer and he's at least as smart as I am.
A responds: Good. Glad to hear it. Now go over to his house and ask him to explain to you the concept of "average."