> The fact that "serverless" is indeed a buzzword is indisputable.
It can be used as a buzzword, but it isn’t always. The same goes for “the cloud.” It’s used in marketing because it sounds cool and people think they need it, but at the same time it can be perfectly clear to use the term in technical contexts.
> For example, "serverless" is used by some people to refer to a more concrete and specific and well established concept of Function-as-a-Service (FaaS). Yet, albeit FaaS is portraied as a subset of "serverless" concept, FaaS does not represent the concept, which is assumed to be more broadly defined.
What’s vague about this? FaaS is a serverless product, but not all serverless products are FaaS.