As much as I love anything lore-related, I think the real lore should live in the minds of its fans and works of amateur creators! Therefore the most important thing to me was for the new lore to keep, preserve and improve what people loved about the character. I was granted those particular things, therefore I am happy: I can continue spawning my Viktor related content sticking to my headcanons while also staying canon-true. And I don't have to repeat "But look, he is not an evil robot overlord you think he is, let me explain this for 435674th time" anymore, hell yeah!
Of course I would be very happy with an awesome, well-fleshed story, but in my opinion, League's official lore is - should be? - built more around characters and less around particular stories. I love color stories for that - they flesh out the characters while being basically unimportant storyline-wise. They might not push the story itself forwards, but give all the fans another base to work with, another potentially unimportant detail to think about, another little tale to read and relate to its participants. You are given an image of a champion with a blurry background, and all the potential lines the artists and creators lead from this clear image to their own backgrounds.
It's damn late in the night now where I live so I hope I was able to make myself clear enough andit didn't turn out too much of a nonsensical babbling. ^^;