Naming is hard unless you have a sensible concept hierarchy, and then naming is easy.

Concept hierarchies are hard, unless you have a sensible system model, and then concept hierarchies are easy.

System models are hard, unless you have domain expertise, and then system models are easy.

Usually when I see one-line functions they cost more in short term memory than they save. There's good exceptions to this with something like a horrible conditional that is necessarily horrible so you can bust it out into a method with a doc comment about the horribleness, its history, and its subtle madness. But developers that just break out one-line methods all over the place wind up writing hard to understand code.