Found this:
Unfortunately, it doesn’t look like “Married At First Sight Australia” S12 is currently scheduled to air on any U.S. channels. However, previous seasons have aired on Lifetime.
It doesn’t mean that VPN access should be advocated by fairly popular news sites when Nine could potentially sell the rights to a US network.
Similarly in the UK, even though MAFS isn’t scheduled yet on Channel 4 AFAIK, it will eventually appear, but the value will be reduced if UK viewers have used VPN.
Really has the potential to mess with the BVOD ratings for the show.
Perhaps Nine are happy with the situation 