This is some exciting news! Years ago I got interested in making my own game and went through many of his tutorials to get a handle on Unity. Eventually I lost interest and stopped working on it. After hearing about Godot I had gotten interested in trying again but never got around to even installing the software. Maybe this will finally get me motivated to get back into it!
Joking aside, length of a game is a terrible metric for price. I always consider how much time I spend playing a game compared to the price for the ROI. But a lot of games just add filler content that is copy and paste missions.