The thing is that smaller primals don't make much sense considering how Summoners are getting their egis, lore-wise. Summoners, like in XI, get their egis from the primals as a form of power-sharing. The differences is that in XI the avatars respected Summoners after proving themselves worthy. In XIV you're not so much proving you're worthy in as much proving you're able. But the BIG difference is primals, unlike XI's avatars, are so full of themselves that the stick up their arses have sprouted roots. The egis aren't so much a primal's will given form in an aetheric construct the Summoner can handle as it is a pity pittance, a fragment of a primal that couldn't be arsed to give a rat's arse over. They are not our friends, and a Summoner isn't much higher on the 'friendship' scale.