Steward vs Leadership : Party Size vs Garrison Size

[eagles_rule_der]

The way its scripted, Steward which is a governor based skill increases Party size.
Leadership which is a personal/party-leader skill increases garrison size.

Thematically this doesn't really make sense, and it also seems to contradict the mechanical purpose of specializing those skills.
I could possibly understand if this was a balancing issue, however it seems like it should be marked as a defect.