I agree with Bernard Marie. The reason is perhaps that the Rep Link is not meant to get requests for actions and projects from the broader circle — that's the Lead Link's role. The Rep Link represents a sub-circle, but if someone wants to request actions or projects from a sub-circle, they should direct the request to its Lead Link, not its Rep Link.
That said sometimes as Rep Link you want to take an action or project for yourself, and it would make sense to me too for GlassFrog to allow it. Maybe with a little warning message that the Rep Link isn't supposed to process requests from the broader circle