All items for FFXIV, including Korean and Chinese versions are made in house and distributed to their prospective areas. The Naver minion I totally agree with, it's not for us and never has been. It's their search engine. Never really cared, but found it interesting.
As I've spoken with a good chunk of friends who play on these servers/areas, including people behind the scenes. They've been very helpful on giving the insight on how this all works. They get a FanFest. Yoshi-P and devs do visit. The only thing they've stated that they found different was the payment systems (How to pay to play the game) and how some things are graphically different due to laws. They have the Gold Saucer and all the mini-games. They are a few patches behind (I think 2 at most on the current system). They do have the ability to buy the Merch Promo code items (Primogs, etc) and the Legacy Goobbue and Chocobo. As well as a few other minor things of that nature. Due to the game not existing for them during those periods when those items were available (1.0).
The Chinese reskin of the Behemoth has been around since I believe the game released there. That's been their exclusive.
The Tonberry minion is based on the New Years Tradition in Korea on glowing ghosts who would steal shoes if left out and grant bad luck for the rest of the year. (If you look at the Tonberry close enough he has a shoe, not a knife)
These I find as regional exclusives, but I also know many friends who play this game, who follow these traditions and cultures and would love to have them included for their own enjoyment. Just like we have the Taoist Moogle, Magpie and Panda bear Minions. Once deemed regional, now available to all.
That all being said, we would like the outfits because the other previous ones before these released and after have all been available to us. These have not..and now being re-released to another region while again, we've been forgotten.
If anyone feels the want/desire to look at their Mogstations and Database here are the links.
Chinese Mogstation
https://qu.sdo.com/game/1
Chinese Database (I couldn't actually find a Database on their official website, it linked me directly to this instead)
https://www.ffxiv.cn/v2/
Korean Mogstation
https://www.ff14.co.kr/shop
Korean Database
https://guide.ff14.co.kr/