I like that you signed up just to comment on this. It probably means we're doing something that matters even if you think we don't do it well :)
We'll work on a real demo environment with a lot of records, we just haven't prioritized it yet. Right now it's not really a demo environment, but a real account that happens to be provisioned with a few example records. Putting more records wouldn't really make sense (you have to delete those records manually to start using the CRM).