Because. If those changes they want get made, then this person; who, by the by, has every class except Arcanist, Fisher, and Botanist at lvl 50 already, will be one of those few people up there already in a game that is suddenly much harder to get to that level. And with the changes they want made to the markets in place this would then leave them in the position of being one of very few high level crafters capable of reliably making high quality or high level items and therefore able to charge whatever the hell they want for them. That's why it matters to them. Because if it gets done, it leaves them being the only ones able to actually make any gil. I'm sorry, but fuck you. Leave the free market alone. It works.