My feedback on the job

-Remove archetypes on pets and give them unique abilities that can be used in a majority of situations.
-Add more pets.
-Remove the dots and add unique new abilities for the summoner itself that gears it away from arcanist.
-Add the ability to switch through abilities like when switching jobs to the summons themselves and use the summon to fight your battles while you cast supporting skills. Most of your core used abilities should be done through the pet and not the caster itself which would follow better in line with the summoner style from final fantasy.

If they did these the class could be a lot better and won't make it difficult to design new abilities in future expansions but as of right now they will run into a problem with making new abilities that will just push it further away from the core summoner style from final fantasy.