Temporary marriage is probably the way people in Qatar get around that. It's probably an alien concept for a lot of Westerners who wouldn't know or would balk at the idea.
In rules of sunni islam, a woman can't get remarried after a divorce for at least 4 and a half months (to wait for unexpected pregnancies to show). Making the practice of "temporary marriage" very impractical.
The article you link pretty clearly identifies this form of "temporary marriage" as being the equivalent of a long-term mistress relationship rather than an encounter with a prostitute.
>> The article you link pretty clearly identifies this form of "temporary marriage" as being the equivalent of a long-term mistress relationship rather than an encounter with a prostitute.
No, because legally the spouse then has all the rights of a marriage (alimony, etc.) Prostitutes do not get alimony.
And this is why you don't take "google searches" seriously. Anyone can write anything, let alone a clearly anti-Islamic website like the one you linked to. Many many scholars have spoken against the validity of such a marriage, and called it out as what it is.
https://en.m.wikipedia.org/wiki/Nikah_mut%27ah