Well the entire macro system is radically nerfed on in BETA for testing purposes. There was another thread on this topic, in which Khatovar linked the blue post stating the nerf in beta was for testing purposes.

If they ever decide to apply the nerfs to the regular servers or if the nerfed system remains in place once Cataclysm goes live, I'd have to agree a software duplicating a removed feature would be a bad idea.

As it stands, the software is not giving you any advantage or new feature that cannot already be done with the existing macro system, and as such the feature is completely fine.