> I've found that "I don't even get what the word is supposed to mean" is someone's first experience with tech fear.

This is a gross misrepresentation of the actual problem affecting the "serverless" fad, which is the buzzword overload accompanied by a lack of objective definitions. Function-as-a-service (FaaS) is an objective, clear-cut concept, but "serverless computing" is supposed to be a more general term where FaaS is only a realization of the concept. Yet, by keeping the concept as a buzzword then the proponents actually avoid having to argue the merits and the advantages of this sort of architecture, thus contributing to the growing skepticism.