Actually, Max, I think it's a smart move.
They offer all the iEN games for one low price, which is cheaper than AH.
They already explained why they can't offer the cheaper rate to the existing customers. If they did that, the immediate drop in revenue by giving everyone an immediate price cut would bankrupt them.
They are tying to lure new customers to iEN with the low pricing. Then, when they have built of their coffers, they will be able to transition their existing customers to the new, lower price.
In the meantime, they are offering their existing customers some access to closed betas that the new customers won't have access to.
Here's the thread that explains all.
http://agw.warbirdsiii.com/bbs/showthread.php?s=&threadid=28096