Board Thread:Support Requests - Getting Started/@comment-24637116-20140405221339/@comment-1330470-20140406011324

The French guideline is:
 * "You have not created, adopted or received administrator rights on another wiki in the last 60 days."

The English guideline is:
 * "You have not adopted another wikia in the last month"

So it would appear that the French guidelines are a bit more strict - however please note that the English guideline was the same as the French guideline is now for quite some time until User:Merrystar loosened the requirement.

It might help your case, then, to note that the English requirement was loosened.