The purpose of Linux Mint is to produce a modern, elegant and comfortable operating system which is both powerful and easy to use.
This is from the start page of Linux Mint: http://www.linuxmint.com/about.php
I have done some things in my life as a volunteer, but it never came to me when I was criticized about that work to say: "Hey, that's a volunteer work, what do you want from me?"
Either work is done well or not. If not, than it is legitimate to say: Yes, I see that this is not very good, but I'm a volunteer and I just do not have more time for it. So it is going to remain like this. However, in a project with a lot of developers, and with an issue that has been known at least since 2006 (another guy says since 2004), I really think that something is... well... not quite...