for what it's worth, the last time we saw an outcry like this (the Unity female character stuff), Ubisoft went above and beyond to fix it in future games, resulting in great characters like Evie and Kassandra.
I wouldn't be surprised if the next AC game (assuming it's late 2020) will have much more fleshed out, meaningful relationships of all stripes.
It doesn't make up for the mistakes here at all but if everyone keeps raising their issues then, hopefully, we'll get some awesome representation in the future.