RC means Release Candidate, and it is not exactly a good move to switch to something in that stage. especially when running something you have in production.
Maybe when v1.2release(or v1.3) comes out they will. but i dont know.
i dont see nothing wrong with the board for them to spend the time switching to another, but they are in process of updating things, so maybe they will.
admended:
according to another board i go to there is a problem with RC1, it has a bug in it that affects posting long messages or editing them. Some of the text has problems displaying correctly, such as double lines, or parts having been cut off and formatting of bold and italics appearing in improper areas.