OK, I quickly looked into this reality show. Looks like a televised version for the US market of standard wedding practices in Afghanistan - the arranged marriage. And it is in fat being decried by some religious leaders, for violating the "Sanctity of Marriage".
Only, of course, if you believe marriage to be the exclusive, sanctified property of God and his self-appointed servants. When in reality, in the US at least, marriage, all marriages, are civil ceremonies. Whether performed by clergy with all the church trimmings or not, or by a civil judge, that's what they are.
The GOVERNMENT determines what is marriage in the US, not God.
BTW, these instant TV marriages are called "social experiments" managed by the likes of show staffer Dr. Pepper Schwartz. Could I make that up?