“If you enjoy it at a concert you certainly should enjoy it for the Torah.”
If it was the same thing then yes. But watching/listening to a professional performer is a far cry from what happens on Simchas Torah. A concert is inherently enjoyable (unless you don’t like concerts). Maybe for some people, watching others going around in circles is enjoyable. Not for me and not for many others – certainly not for hours on end. The fact that they hold a Torah while doing so doesn’t make it more or less enjoyable. It just defines what they are running around in circles for. If some group decided to celebrate simchas torah by twiddling their thumbs do you think that people should enjoy watching it simply because they are twiddling their thumbs in celebration of the Torah?