Unfortunately they just recently said they are not moving the EU server to EU for sometime till they are able to combat botters, gold farmers/spammers.
I bet the biggest issue is moving the server without having to take it down for a day or two so that they could fly the server itself to the new data center. But why tell people they messed up in the first place and admit wrong doing?
Saying the NA server has the same lag is possibily the most stupid arguement there is!The lag doesn't have anything to do with the EU server being in the US. The NA server is having the same issues at times, and they are working on it.