Essentially, you're asking for a free version when the markets they were originally designed for (China and Korean) paid the equivalent to what we're being charged now. Putting aside it makes no sense whatsoever to gave Cash Shop items available for free, the third party company SE subsidizes to likely wouldn't allow such a practice. It'd be like SE releasing the maid outfit through an in-game event during the Amazon promotion. Odds are near guaranteed Amazon tells them to sob off when the next promotion rolls around.
As for people asking things be put on the Mogstation. They do so knowing SE wouldn't have any incentive otherwise and don't mind paying extra for specific cosmetics. I adore Tifa's outfit from Advent Children. Now which do you think will more likely garner SE's attention...
"I want Tifa's Advent Children outfit for free through an in-game event which will cost you money to create."
"I will purchase Tifa's Advent Children outfit from the Mogstation if you design it."
That's why people ask for things on the Mogstation. You are
significantly more likely to see results.
Splurging every once in a while does not make someone a whale. And everything is not "served to them." In fact, Reddit did a statistic on the Mogstation recently:
https://www.reddit.com/r/ffxiv/comme...wow_and_other/
Out of 50 minions and 33 mounts, only 3 and 6, respectively, have been released as Cash Shop exclusives, Promotional or Veteran rewards. This is actually down from ARR and HW, though, obviously, SB has another year to go. I am all for criticising SE's more recent practices, but let's avoid the hyperbole.