Boy this would be a major break through wouldn't it? I completely agree, it worked at one point. I think where it fell off is MW's versions change the way they do and it may have been hard to keep the importer up to date to accommodate MW versioning.
I would like to see if there is a way talk our tiki gurus into making this feature work again, and keep it maintained. They have a ton of work to do on a daily schedule between them all, but like you said, if this importer worked, it sure could bring over many users from MW.