Admins should have all the time they need, all the work they do is voluntary and comes out of their own goodwill. The fact that they work and try to develop the game as best as possible with no expectations of money payment is already amazing in it self, specially as some of them produce outstanding work.
However it is true that the game does not have a rapid expansion and new content available at all times however thats the owners fault for not hiring lots of game devs, graals always felt like a community built game though which is what I think makes it as successful as it is for the most part.