A game mode without items.

Yes... But the rework still buffed what scalings she had. And she'd still have Runes and Masteries. And her W does Percent health damage and doesn't need scaling, outside of her passive which could eventually bring her up to doing like 20% of your max health. And the rework also didn't change her base stats. In other words, none of what you just said;

She has the lowest starting armor of ADCs at 20. Lowest movement speed for her starting range. Her base damage is 54 and caps at 95. and her health stops at 1985. And her attack speed is normal for an ADC at .625

But due to the delay, her attack speed feels much slower than advertised.

All of her abilities do not scale with AD. They scale with her bonus AD. This means that these skills will ONLY scale in damage based on her items alone.

Her E, which is the major source of her damage is also incredibly dependent on crit-chance to increase the threshold in which you can get 50% more damage out of it.

Her Q which has the second highest base damage of her kit... can only hit a target once. So... at most that's 135 damage reduced by armor. Across three targets? I guess it's noteworthy. One target? You're better off just auto attacking.

And most of Kindred's damage comes from critical hits empowered by Infinity Edge.

The only saving grace you have here is Lambs Respite.

That said... playing her without an item is like playing lamb without wolf and her bow. She'll be throwing little marsh mellows at you. If you some how die to a lamb without any sort of items... you really gotta question what the hell you are doing wrong.

is even relevant.