Just remember one thing, the method for Jp and Global is different, and if it was the way Jp had it, we wouldn't have any issues whatsoever since it's code based.
Some people just don't like Facebook or don't want to be part of it or don't want to give them their information etc. They are a very low minority but they exist. Even disregarding all of this, if anything happens with our Facebook account, be it a hack attack or a ban for whatever the reason we are fucked.
While I agree that the FB method isn't necessarily ideal, I just find it irksome that people that gamed the system would complain that they got screwed. I mean... you broke the rules and that's a risk you took. The people that are having issues completely unrelated to their BE playing experience (e.g. their FB account got hacked) I can totally empathize with, and it does seem awfully terrible to me that their accounts can't be recovered or transferred on Gumi's end. Having an alternative way to sign in to BE outside of FB seems like a no-brainer. I never re-rolled, so it's a non-issue for me on that front, but I must admit that if given the option to sign in outside of a FB log-in I would jump on it in a heartbeat.