I'd say yes, they probably should get some minor benefit, as well. As for what that is?
Well, from the looks of what you've done before, you want to avoid altering base stats, right? So +X to skills is probably out.
For a similar effect, you can do situational re-rolls. For instance, a Docker might get to roll twice (and take the higher roll) when using Bluff against the people of Risur. A Yerasol Veteran might get to do the same when using Intimidate against Danorans or Eladrin.
Skyseer: Can reroll any one check while performing divination rituals.
Things like that?
Situational bonuses can also work.
Yerasol Veteran: If you've survived Yerasol, you can survive anything. You gain a +1 power bonus to all defenses while bloodied.
A similar +1 to attack rolls while bloodied could work well for the Vekeshi Mystic (as the more retributive defender theme).
You can also give benefits that grant free things, but don't affect stats. For example:
Technologist, level 5: You master the Enchant Magic Item ritual, and can master other Creation and Warding rituals as though you had the Ritual Caster feat. All Creation rituals you perform have a technological component to them, and all Warding ones require one of your Simulacrum as a focus (but otherwise perform identically, other than having the similacrum present). If you have the Ritual Caster feat, you get a +2 on all checks to perform Creation or Warding rituals.
(I know, that one seems like it's much bigger, but the benefit is still fairly minor.)
Martial Scientist, level 5 (stolen from the Noble theme): Your former tutor, seeing your progress, decides to encourage you. You gain one common suit of armour, weapon, or neck slot item of 6th level or lower.
I hope that helps.