At least at first blush, I think part of the reason we don't (and probably shouldn't) have a tag for these is that "christian-scholars" is not a meaningful class that identifies a perspective or maps out a scope. These questions are ambiguously tagged because they are themselves ambiguous. Adding a tag would be a band-aid on broken femur.
At best what these questions could be interpreted to read is that they are looking for more scholarly academic themed resources rather that pastoral or lay resources. This in itself isn't a taxonomy and is rather redundant as that level of resources are ideally what we'd like to see on all questions.
At worst creating such a tag would only encourage more ambiguous unscoped questions with clever disguises whose fatal flaws won't show up until after a few contradictory answers start showing up.