Because of the way the Jinx changes work, it'll be a rework-level relearning of mechanics and damage
AS changed at every part of the game = all previous muscle memory for Jinx AAs is useless. It's not like casters, where a simple numbers change makes no difference in the responsiveness of the champion or how they handle; AS changes are changes to the very way you have to interact with the champion when they're AA based.
Q won't be worth maxing first anymore, because having just a single point in it provides enormous passive benefits, but putting another point in it only gives 10% more AS -- the passive AS gains are much better than the gains from leveling the skill relative to the flat damage and slow increase on w. Instead, It'll be q max until rockets are at a good range for the matchup, then w>q>e max. This also means her damage output at each stage of the game is even more drastically variable (since a lot of it is more dependent on skillshots). Hitting w will matter more for damage, and it's literally a 1s delay skillshot. Additionally, she'll lack a strong level 9 powerspike.
I stand by these changes being counterintuitive and unnecessary. The results of the changes will put Jinx in a bad place, make her kit level awkwardly if played optimally, reduce the reliability of her damage, and give her a terrible time to payoff ratio for her scaling (powerspiking after lane is not good for an immobile AD without %hp damage steroids).
Seriously reconsider these changes.