I realize it currently does not work, with the chat forwarding features of Jamba.
That's why I suggested posting as a feature request.

Jamba currently has normal chat forwarding to the master toon.
Which is similar to RealID Forwarding, even if RealID Forwarding does not currently work.

I don't know enough of the Real ID chat or what an addon can or cannot do in regards to chat forwarding to know if this is possible to code or impossible.