Absolutely legendary
This is such a tiny and specific sample compared to the unqualified claim they make in the title. Unfortunately, this level of rigor seems to be par for the course in the world of nutrition.
Julia, Rust, and Elixir are all great, but popularity, ecosystem are not there yet.
The alternative is to use multiple different languages to fill different niches. In theory this sounds suboptimal but I think it might actually be easier to learn multiple simpler languages than it is to learn Scala.
BTW according to PYPL: Swift, Kotlin, TypeScript, and Rust are now more popular than Scala.