On the topic of Lightning Strikes.

[Kuwagami]

The Lightning Strikes Event brought a lot of joy to Final Fantasy XIV players, both old and new.

I would love to argue that (FFXIII wasn't exactly well accepted by the fanbase) but I'll focus on your point instead

They simply... cannot do that. These events were a commercial advertisement. Nothing more, nothing less. Now that lightning returns is out, repeating that event would destroy its purpose, and wreak even more the lore of Eorzea. These events made absolutely no sense back then, and it would be even worse now...

Though, it it's only what bothers you, they could make the gear available by some sort or salvager somewhere.

(you can edit your post to bypass the 1000 limit)

[Fawkes]

They simply... cannot do that. These events were a commercial advertisement. Nothing more, nothing less.

Well, they are more. 5 years from now I'll be able to change to Lightning's hair and put on that outfit if I want, and people who missed the even won't. That has nothing to do with advertising at that point.

If it were just gear that'd be one thing, there's already exclusive gear. But to me at least, hairstyles aren't something you should lock people out of. It has a significant impact on your character's look.