I would bet they were forced to redesignate because there was no reason to have it anymore since the restrictions were lifted. Why manage a community you don't need? There was an O-4 GURL at my ROTC unit that left right as I started my freshman year. Thinking back, it's interesting to do the math and see someone that relatively senior was still around in that designator. Then again, I guess that was only a couple years after everything opened up. There was an brand new O-1 that was stashed there, as well, but she left right as I showed up, too.
@AllAmerican75 It's interesting that you ran into so many. I would have thought most would have been senior enough to not be around anymore. Then again, I guess that explains where all those random TAR/FTS HR people come from.