This article has revealed my naive interpretation of Betteridge's law to be inaccurate. The law is unbroken here despite my initial reaction to the contrary; its subject isn't the naive boolean value of the question, but the broader intent of if the question disproves the underlying null hypothesis.
Unrealted: As others have pointed out, the contents of the article are scoped broader than Rails. If we pursue that derail: Rust is still, in my opinion, not a better choice for web programming than Ruby nor Python. It's fine for small HTTP services, where there's a proliferation of (often-Tokio-based) Flask-like Frameworks. There is still a dearth of Django or Rails like ones, which I prefer for websites.