It's interesting. No other magic item listed in the DMG says that no feat is required to create it. An Everlasting Torch cast be dispelled... but it probably should have been listed in the PHB under equipment instead of the DMG. For example, Holy Water, which is just water with Bless Water cast on it, is listed in the PHB.
Hmm... but unlike an Everlasting Torch, Holy Water can't be dispelled since its duration is instantaneous. I guess the writers didn't want to put an item under "Special Equipment" in the PHB that could be dispelled. Hence, they listed it in the DMG under magic items... but couched it by saying that no feat was needed to create this item.
Makes sense to me.