We break the 2 types out in the UI, listing separately. So the user gets to choose. This gives a kind of "best of both worlds" outcome, where a user never gets

We break the 2 types out in the UI, listing separately. So the user gets to choose. This gives a kind of "best of both worlds" outcome, where a user never gets zero results (and can be make very low fidelity queries), but also doesn't have to sacrifice specificity when the query they're making is one of precision and intentional retrieval.