A few reasons really. Number one is that we don’t have the time required to create a site that supported many different guitar makes/models. Another is the additional cost(server space/bandwidth). And we’ve always liked sites that covered a few things really well better than sites that try to cover everything.
Since the Fender jag-stang was designed, conceptially at least, from the combination of the Fender jaguar and the Fender mustang we feel it would be best to only cover those models in detail.