They said they trying to find a way i don't see why they could not. I mean people in 1.0 where changing there FFXIV name but just deleting there Char going to live support chat and asking them to recover there char. Which i saw a guy doing in about 8min and once you return and click your char it would ask you to rename your char so he does and log back in. He did this about 5+times in ffxiv but he said it's a risk because the support people said they wont recover it anymore if he keep doing it.

So there you go there always a way to change your name and i'm sure they allow us too i don't see why can't they. If they say they can't due to ARR then they did not do good enough job at recording ffxiv if they can't make a way for us to change our name then what else is ARR limit too when that is a very simple thing to do lol.