That’s the linguistic descriptivist position.
We can also require all papers and journals and conferences to use "Function as a Service" everywhere, and force all professors to teach "Function as a Service", and require all official publications to use "Function as a Service", by defining an authoritative dictionary, which gets its authority by law.
Then wait a few months, and the term "serverless" will be gone.
Some countries handle their entire language that way – and have an official institution tasked with updating the language every few years, and the updates become mandatory for business communication, press releases, and schools.
Germany and France are some examples.
IMO, having grown up right after one of the largest such changes in recent German history, it’s a better system than letting the mob decide how to call things, or how to write words, because that leads to pure chaos.