Here is the reason why Kindred sucks ass right now.
Unless she has 12+ stacks, she's literally useless. Taken into the fact that she was heavily reliant on stacks before, giving her basically a free BORK in her kit, she's REALLY reliant on them now, to the point where she's damn near unplayable until 25-30 minutes into the game after you build you 3rd or 4th item, which is about the time you get your 12 stacks, if you're lucky anyways. She such a situational pick, the only thing she can play against, is a tank jungle with shit clear speed. I luckily played against a Garen jungle, and I did "ok", taken the previous games, I go 5/11 because I can't do damage. She's too damn squishy with no reliable damage, she sucks dick until she stacks up, which I BELIEVE was RIOT's goal with the champion itself, but it's just too damn punishing until you get to late, which in the current state the game is in right now, by the time it does reach 25-30 minutes, the game's basically over anyway. Don't get me wrong, Kindred was shit before, but holy fuck this is just a headache to play now. I'm pretty sure Urgot jungle would be a better pick, at least he has reliable poke without having to wait 30 minutes for his kit to start finally rolling.
Just revert the changes to Kindred and give her a SLIGHT buff. I personally don't know what to buff on the champion, for I don't really bother thinking about that type of stuff. I'm not educated enough on the matter on tweaking a Champions numbers. She's just unplayable right now, simple as that. If she makes the littlest mistake in ANY way, she's fucked.
Edit: I think the reason why she sucks so bad early, is the fact that her only real damaging ability, is her E. Yes, I'm aware her W does % of current health and her Q, which is hardly any. It just does no fucking damage early, and requires you to attack 3 times. It also requires you to build crit and wont be doing hardly anything until your third crit item, for the crit ratio on it is .5, so if you have 50% crit, it'll do 25% more damage (basically).