Thanks for reporting.
I filled in the contact form that is linked at the bottom of the warning page to ask bit.ly to unblock the link, explaining they are simple xml files that present no danger at all. (perhaps the .xmlc extension is triggering this?)
It might help or speed up things if you and others could fill in the report too.
I filled out the form too. They still haven't un-banned the file though. Do you have another think for the 3.x version?