You know, not having kind doesn't actually make you horrible. It's not like she's actively cruel. She's run out of patience with the 504s and will probably beef up our military. Both of these are, in my opinion, good.
She's likely to continue caring about her family, and her continued ambition means she'll do what's best to grow greengraft, which is also good.
So she won't be a paragon of virtue or anything, but she'll still be somebody worth admiring, who had the best interests of our polity at heart, and who is completely capable of kicking ass.
It might not be optimal, but neither is it anywhere near horrible.
I'm starting to feel like if events end up anything less then absolutely perfect for us, people will complain. Lots of people. Even me.
Damn it why couldn't we have passed 40 martial? It's all for nothing, we might as well quit since we're just going to watch the works burn in front of us without that 40 martial that we absolutely needed for arbitrary reasons!
Well, you say she doesn't wind up a bad person, but the text itself seems rather disheartening. Or at least, it sounds as if it isn't just "She got made slightly less nice."
"The repackaging of your soul is not without incident though. Through either carelessness or malicious intent, the abomination breaks part of your mind, slicing away pieces of you.
Compassion and patience and humility slide away from you, leaving you lesser for it. You feel your heart harden, a
black pit of hate growing within you. Such violation, such a fundamental
rape of the soul could not go unchallenged, and you manage to lash out with every erg of will you have in you. While it does no harm to the ancient alien mind, you do make contact, and something resonates back into you. Perhaps because of the Index, perhaps because of some fundamental resonance between the structure of your soul and the Eldar soul, but you catch a glimpse of the immensity of experience within that being and you rip your own copies of that which is useful from the abomination. The alien drops its telekinetic field in surprise as you undergo a fundamental reorganization of the self."
Though we might have mitigated it slightly with the Focused fury stuff, or something. The pride's not good either, since it'll leave Dia less able to check herself before she wrecks herself.
And no, I'm not claiming this is the end of the world, but gaining Kind (Humble's no longer likely because of the Super Pride trait) would help moderate some of her bad tendencies.
So that she doesn't, say, string people along sexually for no reason, or go too far in getting revenge for reasonably petty slights. Instead she'll be sexual but in a more benovolent way, quick to anger, but understanding the concept of mercy.
Also, it's the first trait we gained from our own actions, Kind is. It feels special to me in that sense, since we acted as we could to not be jerks early on and it paid off then, at least.