After having a blast on the New Generation movie I didn't like poor story telling and animation quality of MYM and TYT seemed too short and goofy to tell some real story. But later I found that character design is somewhat clever and music... Oh Gosh! That music! Charmed me so greatly that I can say, I love G5.
I don't think it's cancelled because of us. Let's admit, we, I mean adult fans, have never been target audience.