Keep at it and maybe someday they'll ask you to help them out.
But yeah right now it's pretty exclusive, iClassic development are pretty tight knit and the majority of the levelling work is for projects that not even the graphics team know much about.
So with that said, theres a huge trust factor involved in itself. There's also 'too many cooks spoil the broth'. And like someone else pointed out, I don't think its the speed of the LAT that determines the rate content is released, so whether there were 2 devs or a whole team the amount of content probably wouldn't change much.
If I were you I'd go learn another tileset and apply for another server, for the experience. A great leveller is someone who could pick up any tileset and use it, rather than just focus on one. Not saying this will get you a ticket to iClassic but it will defo teach you a lot about the other side of the fence.
Keep at it!