Married at First Sight (Australian TV series)

Married at First Sight is an Australian reality television series based on the Danish program of the same name. The show is premiered 7:00pm every Sunday and 7:30pm every Monday, Tuesday and Wednesday on the Nine Network. The show features four to eleven couples, matched by three experts, who agree to marry when they first meet. However, unlike other versions of the show around the world, the couples do not partake in a legally binding marriage due to legal restrictions, but instead meet as strangers at the altar of a commitment ceremony. The couples spend their wedding night in a hotel, then leave for a honeymoon. Upon returning they live together for a month, whereafter they choose whether they will continue their relationship.

Question: is married at first sight a legal marriage
Answer: no