Because not all styles and templates are created equally! Some template edits don't work on my style so I have to manually add in new edits, which can get quite confusing. Template edits could use inheritance, much like styles inherit from the master. If I can see that X edit isnt being applied to X theme, then I can override the template edit, much as I can override a template at the style level. I think this would be a useful addition. @Waindigo, @Mike Creuzer? Does this make sense?