Legal immigration - screwed again?

For some strange reason, around the time the Senate blocked CIR employment-based GC became current in the visa bulletin. After that, suddenly it was reversed. All the people that scrambled, cancelled vacations, and paid to have lawyers assemble I-485 got duped. It is quite interesting what a wreck of legal immigration system the US has, or what political games go on. While it does not affect me personally, another lesson learned.