After much thought (and some petitions by players) I've decided to -not- disqualify this at the end of rating period. The only reason is that it's possible to see timestamps, and as long as they stay unchanged I will allow this as a qualified entry. I have disqualified several others that used externally linked files but those didn't have timestamps so there is no way of knowing if it gets updated post-jam. Next jam I will add to the jam page the rule that externally linked files is not allowed and that -all- submitted files must be downloadable directly from the project page.
Sorry for the inconvenience :)