I spent almost all of last night running heroics with my guild and let me tell you this, while they are certainly more challenging than wrath heroics were at release, it's not such a gigantic leap as some make it out to be. Crowd Control (while nice) is certainly not something you have to do. As long as you pay attention to the trash and interrupt casting, you can do without it for a large number of the instances. Of course, some of the pulls are just ridiculous and crowd controlling them doesn't really help.