By seeing how meta works and by the specificity of the CR.SE, I think that could be a good fit.
On metas, questions have to be tag with at least one of bug, feature-request, discussion or support. And that is pretty nice because it gives you an idea of what are the topics. It also make you able to find similar questions with ease as you can browse by these types, and all the question are under these types.
Reviewing always gets down to some specific aspects like [tag:refactoring, optimization, clean-code, best-practice or security. I think that any question is always about at least one of these tag (maybe I'm missing some, but you get the principle). We could probably get down to a list of 6 tags or something like that.
It think that having something similar could be very nice and help "experts" finding the question that they love the most, and for questions to find their experts!
It would also be helping new user who get on the site, as they would see the "global categories" of reviewing. When you are new on a SE it's sometimes hard to see what tag you should use (because of a lack of knowledge of existing tags).