They announced how worlds would be shuffled.

[dinnertime]

No it's not smart. I, and many others on Mateus are not part of these RP'ers, but do savage and late-game content. Now we will have to move to another server because our queue times are going to be utter crap.

What I am angry about is everyone is saying Mateus is an RP server, but what they don't seem to get is that Mateus WASN'T an RP server prior to 4.0. When 4.0 hit, lots of ERP-ers flooded our server from Balmung and Gilgamesh. It utterly ruined our world. I've been playing with the same group of people for 4 years, and times have changed. These changes have ruined my fun for this game.

This is some other guy taking over on this part of the post because I can't be bothered to login here:

it sucks. I transferred to Mateus to PLAY WITH THIS GUY UP HERE WHILE BEING ABLE TO PLAY WITH MY FRIEND ON CACTUAR. Now I can't. That's dumb. Really dumb. Even with free transfers, the transfers require me to either
1) Get my friend to quit her FC and come over with me and drop all of her friends.
2) Get my OTHER friend (THIS GUY) to quit his FC and come over with me.

How is that smart?

You're not getting it. It was coincidental at most that the RP servers were moved to the new datacenter. They could've swapped Mateus with Gilgamesh alternatively and people will still get mad. The devs can't please everybody.

Besides players can call a server the RP server, Raid server or PvP server all they want, but officially these are just 'servers' and people can actually do anything they want on them. I'm sorry your server got "ruined" by those mean and scary RPers...Not.
I won't say much about the consequences of the world arrangements, but it's obvious that SE is taking a huge sacrifice here, for something that'll benefit the game in the long run.