But that's exactly why I would prefer global servers. So I can play the game, not just in primetime, but any free time that I have (which is admittedly some very strange hours). I had a great PT at 6am this past weekend that was a split of NA/JP/EU. We had a heck of a time doing random flights and just hanging out. I will sorely miss that.
As others have said, even though they will offer a choice of which region server you want to be on, that will be most appropriate to (as an example) an English speaker who happens to be living in another country, or vice-versa; or someone who had a non-standard work schedule and regularly plays at a time that isn't their normal primetime.
What this will NOT do is provide for global servers that are active at all times of the day. Even though I really enjoy playing with JP/EU, being on one of their servers will still be to my detriment due to the lack of NA. I don't *gain* anything through that making that choice.
I realize why this is being done, but it still makes me sad that one of the things I (and many others) particularly enjoy about FFXI and FFXIV is going away.