Nah it's losing it. SMN gets access to Titan, Ramuh, Garuda and Ifrit confirmed so far (and I think Leviathan?). So it's not just a one button summoning ability based on class. Like I said in another thread:
It was always needing one more class for the job. As the job you get access to 2 other class's abilities. Example: WHM required in 1.0 to have CNJ 30 + GLA 15 but could also use abilities from PGL.