I think you are exactly correct. The success of OOP thinking is actually one of the things I don't like sometimes; we are so focused on creating state machines

I think you are exactly correct. The success of OOP thinking is actually one of the things I don't like sometimes; we are so focused on creating state machines with carefully crafted interfaces that we forget that we can have stateless functions as part of our state machines. In general, I wish we were more careful with only creating these state machines when the alternative is more complex, or when the problem domain is easily modeled by one.