Ya there are only about 65 threads open right now about SMN balance issues. At a minimum, it has been noticed.

The other thing that really hurt SMN was the removal of pets abilities to soak damage in FCoB like it did in previous coils. That aspect alone, was enough to get people to bring SMN's into T5. It was, admittedly, insanely overpowered because you could basically remove a healer mechanic with it, but it did at least make stuff interesting. People still use the pet soak method for T5 lol.