It didn't mention it because that's not true. This is targeted for enterprise, and there are no plans to sell cheap internet at the price the antenna costs.
The article uses no factual basis to back it up, though. In order for it to be competitive against existing internet, it needs to be as cheap. Their current pizza-box phased array antenna was likely too expensive, so now they have a motorized hybrid that moves the phased array on top. That will be significantly more money and less reliable than your existing cable.
There are existing solutions, like o3b to cover underserved areas with high speed internet. They pivoted to cruise ships because the equipment is too expensive. If you have a link other than this blog showing otherwise, please provide it.