They definitely are gonna need to axe that -50% leader cost from professionalism if we're gonna have so many sources of leader cost now. Slackenining Recruitment Standards regularly gives so much manpower, and it scales to your max so it scales very well. They could nerf slackening recruitment standards somewhat as well.
There is no point to remove the -50% leader cost from professionalism, since it triggers at 100% AP. That removes the entire point of the modifier to stack it for slacken recruitment standards.