To the contrary, this article is likely very much on the level. The temporary marriage is very commonplace in Shi’a Islam, particularly as practiced in Iran. I believe the article makes clear Fairuza is Shi’a, and the name itself is in fairly common use by Persians.
Do a quick Google search on “Mut’ah” and/or temporary marriage in Islam, and you might be surprised. Don’t think it’s not happening in the U.S., either, if it’s happening in the UK.