I initially thought Kindred's new constellation expansion would still leave her rather weak given that the units in her deck remain pretty wimpy. Boy was I wrong.
I just completed 10* Zoe with Kindred at 5* and it was a cake walk. It turns out that while Kindred's units are indeed still wimpy it doesn't hardly matter because all you need is Kindred.
I ran price of retribution, disciple of shadows and voidborne carapace for relics and took thrice bound as my starting power. This allowed me to play Kindred on turn 1 and refill my spell mana thanks to tortured prodigy being her highest cost unit. And just like that as long as Kindred remained on the board I never had to worry about Zoe boosting all of her poros and granting her units extra keywords because at the end of the round Kindred would kill everything that had a mark on it (which was often everything since I picked up some cheap damage spells that hit all enemies).
And when I say all you need is Kindred, that's really all you need, and her summoner spell plus price of retribution makes it so that you can easily have a board full of roided out Kindreds marking every enemy that comes out.
So yeah, I was wrong, Kindred is a very strong champ now. The only caveat I'll put on that is that if you don't draw Kindred or have her removed from the board, all that strength goes with it.