I compared US-based carriers with non-US based carriers. Southwest, a US-based carrier, competes with other US-based carriers. You're right, Southwest is a great choice if you're flying in the US, but that's not what my post is about. You can't compare Southwest with Cathay Pacific or EVA Airlines because they operate totally different routes.

Same thing regarding EasyJet comments, which is another "niche" airline. Try flying EasyJet from LAX to NRT, for example.