That doesn't seem terribly abnormal to me. There's plenty of FF games/characters where multiple equips are available from the start or near enough. It's also not that different from the situation of multiple weapons becoming available at a shop at once with one being clearly more powerful than another, which often happens in RPGs. If you didn't pick up Peacemaker earlier, you use the initial equip. If you don't have enough money, you buy the cheaper, weaker weapon. Seems like about the same concept to me. There's no guarantee of a particular weapon being useful, but for some players it could be.