Your response is pedantic. It is statistically an outlier.

"There's no accompanying analysis to support its rejection from the comparison, let alone an attempt to quantify exactly how much of an outlier it actually is."

There's no accompanying analysis to support its inclusion in the comparison, let alone an attempt to quantify exactly how comparable it actually is.

Claiming Sweden underperformed Denmark is also a far cry from claiming that Sweden underpeformed other Nordic countries as a whole, as the original article does.