If this is the cheapest option, I would be very curious about the other alternatives listed in this article. Because the Suiso Frontier carries less than 2000 m3 of liquid hydrogen. A regular LNG tanker today carries around 165000m3 of LNG. That is about 80 times the volume with Q class ships beyond 100 times the volume. The smaller the ship, the more expensive the transport. Plus H2 needs to be a good deal colder than LNG to be a liquid and requires exotic metals for containment. This is not double of triple the cost, we jump orders of magnitude here.
Technology also has advantage of high purity and a simple reconversion process, research by consultancy shows