I never mentioned the GCD having anything to do with PS3, but rather it being PS3 limitations and the slow combat. Just one of the reasons why large scale PvP wouldn't be very fun in FFXIV. I still don't know why people are so interested in the dance studio... but they did recently get a transmogrification (glamour) log which we've been asking for quite some time. To be fair though, WoW's server structure and technical side of things are miles ahead. If FFXIV updated their launcher to be constantly running in the background for updates (optional of course), the ability to log in with the click of one button with a UI overhaul and live hotfixes I'd be ecstatic. I'd settle for a glamour log though.
Maybe after FFXV is finished they'll actually think about spending money on such things, but I doubt it.