Limitations on Modular Abilities: Unbalanced?

[PK]

Originally Posted by David Johnston2

I don't believe it is. Social Advantages aren't available at all for Modular Abilities. Mental and Physical are the only categories. But Summonable Ally isn't a social advantage. It affects the exterior physical world (which is why it's the only form of Ally available to NPCs.). Therefore it's a physical advantage.

Are you saying that you use this as a house rule? Or are you saying that this is how the rules actually work? If the former, sure that's fair enough if you find summonable Allies unbalanced. If the latter, please provide a cite.