If you were talking about the frequency of updates or about the amount of content on each release, you might have had a point.
Not talking too much about a future that isn’t guaranteed, in other hand, is something even solo developers can do. This is a failure in communication, not a matter of scope.
I had forgotten that, though they haven’t “talked about” s5, they’ve given a roadmap for the next season & expansion with a handful of bulletpoints. That’s about as much conversation as I get from 2 of my teenage kids. And don’t forget that the community asked for a roadmap.