Yes the whole goal with this is to extend the general notion of FaaS (Functions as a Service) into something that can work seamlessly, both within their own projects and across the Web. Similar to what Wikidata is already doing for common real-world entities and concepts. Of course, the devil is in the details with these kinds of things; it's likely that implementations of even the most basic functions will behave in subtly different ways across languages. Their testing framework is supposed to mitigate this but it looks quite ad-hoc.