It's another oversight, like the literal dozens of others (brain dead AI, #TODO code sections, unbalanced mid game crisis, ect....), given the fact that the devs seems to have a hard time having the game even be playable without Glavius I think this will be pretty low on their priority list.
I believe someone made the calculation that for reaching level 10 with no bonuses as an admiral it would take about 3 and a half century of combat or something. Don't quote me on this though it's been a while since I've seen the post.