> I feel like you’re going out of your way to misinterpret the article.

Nope. You correct yourself after, sure, but what I wrote is how it came across at the time when reading.

> Where is the factual mistake here? “si” is invalid romaji, my article uses romaji

No, that's not what "romaji" means. If you mean Hepburn, say Hepburn. And if you don't know the difference, that's a sign to learn more before presuming to teach others.