Square themselves. They've gone on record god knows how many times stating that Mods are not allowed in the game. full stop. even stating as much in Live streams for upcoming patches/expansions and Q&As. So the community freaking out now is sort of a "really? what did you expect?" type of deal.

the director himself is usually the one who comes out and explains it and whats happening behind the scenes. Hence when they address it, he will be talking as himself as rather the team in official blogposts. Theyve been litigious against mods early in the year so youd be hard pressed to think they want it there.

generally speaking, most mmo companies have a similar clause and they take mods on a case by case basis. FF14 is the only one that constantly reminds people Moddings Bad Mkay, don't do it, and actually acts (bans) on it.