If we want programmatic access I guess we should provide a proper API for that. I’m not against that if there is a good use case. I don’t really see it though. You typically use this tool to figure out how good your test suite is or to get some insight in what is actually used in a big code base. If you want the coverage of a specific test, simply run show_coverage/2 for only that test. What is wrong with that?
Keep it simple …