We are at yet another job adjustments but no sight of spirits adjustments. When are they coming?
Hopefully never. They serve the purposes they currently serve just fine and dont' need any other puprose.

I don't understand the big attachement to spirits. Avatars are supposed to be the mainstay of the job. Why do we want spirits to be so good? They have a certain amount of utility already and they're fine the way they are-

1) They cast quickly and as such can be used to lose aggro that is attacking you.
2) elemental siphon, self explanatory
3) light spirit's buffs are superior to your own with any subjob and can be handy if you really need them. Also the unique ability to cast curaga spells on other parties in an alliance.
4) As they're still locked to tier IV, there's some chance you can use them for yellow proc.

Forget the bleepin' spirits and give summoner buffs where it really needs them- like the cap on BP delay - or the resist rate of avatar enfeebling effects.