No! Not at all! I agree with you completely in that these are errors. It's just that some people (myself not included) tend to view comments about grammar or spelling as arrogant ("it's an operating system, not a dictionary!").
-- typos and other problems in example content https://launchpad.net/bugs/48882 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs