The ballpark numbers seem well in line with similar studies I have seen elsewhere. So while I don’t doubt there might be minor flaws in this particular source material, the point still stands.

We shouldn’t nitpick too much about stuff that’s generally trying very hard to get facts right while the right or making up shit left, right and center and call fact-checking a limitation of their free speech.

Suggestion: point out flaws but also confirm that it’s definitely not just made up and probably largely correct