They didn't "leave anything out", they explained what the issue is: some of the text there comes from the components, not language strings. The language abstraction in the Admin CP is exponentially better than it was in the 2.x series, I think people should be getting off IPS's back about this. If you simply state what the issues are, they can look into fixing them for future releases, but you guys chose to toss out words like "ridiculous", "useless" & "not professional". As a developer myself, I can tell you that's about the worst way to try and get support for your issues.
I agree that I think it would be something that would be good to look into for the future, but seriously guys, you make it sound like this is the worst thing in the world, when clearly it is not.