The problem is that people will Google things like:
Going straight to the forum circumventing the main page and they'll just post for help not thinking much about it, as only one example.
I guarantee this will be a problem. People don't pay attention and further more most WordPress users are not tech savvy (hence why WP is so popular especially with 1-click installs offered by most hosts).
Many won't even differentiate the words theme and plugin outside the comforts of pushing buttons and having things automatically installed for them.
Maybe you can rename your theme to "GroundWorx" (a name I once considered) or similar.
It's pretty much common sense that this will be a problem. However, it depends on how big either of our projects become. If neither become popular it won't be a big deal, if even one of them becomes popular it's going to be really annoying redirecting people over and over.
Otto (the admin who'll have to help you), I know doesn't want to do this, cause it's a pain. But, he said it's up to you which I think would imply he'll accommodate.
Let me get him "on the phone".