It was the only proof of the use of JOGL in this game because the authors said the game uses Java and OpenGL on their blog but they don’t tell precisely which OpenGL binding they have chosen. I admit that I thought it uses LWJGL because some other commercial games already use it but I was wrong and I’m very happy to be wrong this time ;D
Instead of being a bit sarcastic, give it a try. I tried the demo versions of your games and I appreciate the excellent job you have made even though you have used LWJGL. Is it possible that you test a game that uses JOGL and maybe admit it is a good software?