They really don't give much of a **** about community feedback unless that feedback comes from paying customers and, largely, those customers are already running AES capable hardware that they've purchased from Netgate so there's no real incentive to implement secure AES in software.
I'm a bit cranky that perfectly good machines like the ubiquitous dual/quad gigabit J1900 won't be able to run the project post 2.6 but at the same time it's a great opportunity for a chunk of the community to move to another routing project that isn't run by Netgate.