I think the issue isn't the problem's with the servers. It's the seeming lack of a plan to solve them.

Here's a suggested plan of action:
1. Begin the process of setting up an EU data center and let us know it's underway, but will take some time.
2. Tag some of the low pop JP servers as overflow for the NA cluster, add (OV) to their name. Recommend people create characters there in the meantime.
3. When the new data center is up and running offer a free transfer period to everyone, as they have done before. This will also allow people to join their friends and family if they were locked out at launch.

An apology is nice, but with it should come a plan of action to address the capacity problems. Maybe there is such a plan, I don't know. For myself I've created a new character on a JP server and I can play with zero problems. I've had to abandon my legacy character for the present to do that.