Doctrine passives or abilities provided to units should have those doctrines (with their icons) be represented in the corresponding units' command cards. Some units already have this, think of Jain Zar's passive ability for Banshees showing up in their command card. I mean like that, but not just for some passives but for all of them, and for actives, too.
Active ability icons could be changed to indicate that the ability is from a doctrine (add the orange circle thing to the icon art).
All the tooltips of these could say that these skills are provided by a doctrine or doctrines.
This way it'd be easier to keep track of what's provided by what and would make it simpler to appreciate the effects of doctrines in a clear manner. I feel like UI consistency and info conveyance are important for making the game look professional and for a better playing experience, and I feel like these changes would be a step in the right direction.