What does Ashe's Q contribute to her identity as a kite utility ADC?

I tried it in a game and it no longer affects Runaan's so either it's now an exception with Devourer, or all on attack effects no longer proc five times. Either way only Muramana which is marginally useful and Guinsoo's actually use on attack effects so they're pretty much the same either way. I think Essence reaver is good on her because it's an on crit effect and each arrow can crit, but that's pretty much it. This is changed but my point in some parts still stands!

I think there should be more utility in her Q than simply gaining 20/25/30/35/40% attack speed and 15/20/25/30/35 extra AD per auto, but right now all it does is give her that attack speed and AD, but in exchange she technically has worse crit scaling statistically. Then again, attack speed tends to do that in general.

I'm not going too deep into the math, but when only attacking once with 10% crit chance, there is a high chance of not getting a crit if only attacking once, making it 0% attacks critting. If attacking 10 times, it is most likely to crit once, making it crit one out of 10 times.

Forward to 90% crit chance, if you only proc it once, it is most likely to crit 100% of the time. If you proc it 10 times, it will most likely crit 9 times and fail the tenth time so it only crits 9 out of 10 times. When above 50% crit chance, Q autos are statistically worse off, but are better early on. Sadly, slows don't stack anymore so it's just damage loss all the time rather than just better slows.

Also, I feel it makes her animation a bit confusing, when stutter stepping and kiting, it's easier to just step back at the first arrow than watch two fly out of my bow, making me guess when the best time is to step away.

I propose this: all on hit effects proc but deal a fifth of damage, 5 times. Her attack frame animation is also improved to fire the first arrow nearly immediately on click but the last arrow only fires at the same time her arrow would usually fire without Q on. Ashe may still move while firing these 5 arrows. This lets her proc a lot of utility top laner items like Triforce and Black Cleaver better, without making her a hyper carry like Kog. In fact she'd be the opposite, being optimized to move while attacking to counter champs that have trouble sticking to carries, but not being able to take advantage of an enemy locked down by CC as effectively. Remove the attack speed steroid to compensate if needed, because she's not meant to just have flat bonuses to her damage.