I would argue more importantly than you knowing it was single season, the creators knew they wanted one season so the entire season was bundled tightly together

I would argue more importantly than you knowing it was single season, the creators knew they wanted one season so the entire season was bundled tightly together. A longer but similar thing for me was Mr. Robot. Esmail knew he wanted 4-5 seasons when he started, and he got his 4 seasons to the ending he intended to write. Should shows be planning tighter arcs then we seem to get anymore? Yes. If you need more show finish that entire arc and make a spinoff with the most popular characters in a new story.