Hingashi was 'kind enough' to open Kugane to trade? You mean they did it to make money via trade while still keeping filthy Ijin out of their heartland. The way you phrase it makes it sound like they're being altruistic in opening up Kugane but that's not really the case.

Of all the things to accuse the Eorzeans of being shady about going after trying to set up trade on a newly formed island to avoid tariffs is kind of baffling to me. If that happens then Hingashi will just have to be more competitive with their tariffs rather than doing what they want and raking in the gil.