Yes exactly. Anyone who has worked on big java codebases has at least one horror story where there are 10s or 100s of classes each with "use once" interfaces wrapping them and there are bizarre consequences like for example, there is only one possible way to wire the application up but for "flexibility" you have to go through (and occasionally debug) a spring boot nightmare for some reason anyway because somebody read a blog post on dependency injection and thought that was a good idea.