I'd agree when it comes to mounts and minions from events. If we later decide to make a new character, we'd no longer be able to have the items we'd already earned on an earlier one. But for ones that remain available to earn in-game, I like having them character based. If we got everything account wide as soon as we'd earned it once, then we wouldn't have as much available to earn on a new character.

Taking a couple of the simplest examples, I want my newest alt to still be able to complete the Curiosity Killed the Coeurl quest to get his Coeurl Kitten, or the Unicorn Power quest to get his white mage mount. It would effectively take those quests away (or at least remove the point of them) if I already had all my mounts and minions when I created the character. One of the reasons for making multiple alts is the ability to repeat content. Making that content's rewards account-wide removes that advantage.



(The other case in which I'd agree that they should be account-wide is with any that are purchased from the Mog Station. If such things are to exist on the Mog Station, then they should be account based just as CE bonuses are. But I really think they shouldn't be there in the first place, which would make that a moot point.)