Maybe it is a ruse, a way for Roar when they do decide to allow lipo's to not meet alot of resistance from racers. If we are racing 4 cells then they add a lipo class racers would go out and buy them without a complaint because they get to go faster again. Or maybe they are going to or already have voted against it.
Regardless, this hobby changes. Different motors, batteries, frequencies, etcetera. I highly doubt the most known approval body in the US would purposely do something to endanger the hobby for the future. It would be self destructive for them.