It would be very interesting to help dev teams decide where to focus their unit testing effort if the coverage and the related threshold for breaking builds are centered around moduleS/bundles or type of classes.

Example: it would be then easy to apply rule of thumbs such as
Models should be 80% covered, Services should be tested at 85% while controllers should be tested at 0% for example.

or VeryImportantBundle should be covered at 99% while NotSoImportantBundle should be covered at 50%