As long as oil level is ok, I cannot think of a problem. I've ridden all kind of bikes for years and never heard of an issue with them running while on the side stand. My son's sport bike does not even have a center stand, nor does the VTX I used to have. The xciting does not lean very far on the side stand anyway. That engine should run in most any position as long as the carb works and it can pick up oil in the sump.
I have seen in this thread, and other places, that the back wheel will turn until the scoot warms up. I assume there is something warming in the clutch. So, if that back wheel can't turn during the warm up, it won't hurt th clutch or other stuff?
.. and yes, I'm probably paranoid, but it is a nice Red and Black scoot that fits me rather well, and I don't want to blow it up :-)