It doesn't make sense for them to be forced to adhere to a fixed schedule. espeically considering all the issues with 12.4. I'd rather get a driver update that's a month late than something that screws up my set-up.
meanwhile, I hope they'd split their drivers update into 2 pieces. If at all possible, they should resolve BSOD and other critical issues ASAP, with perhaps small plug-ins or work-arounds that are released as soon as possible. for other things such as crossfire scaling, game performance optimization, they can take their time, get it right, then release it as a full update. afterall, I'd rather be able to run my x-fire rig at 70 or 80% scaling, then spend hours or days trouble shooting with messy updates