Is there a reason Kennen's 1v1 was gutted?

It was already pretty terrible, now it's atrocious, especially in the early game, where it matters.

I'm Kennen with Hourglass + Hextech Belt + Needlessly Large Rod Enemy support Zyra with Frost Queen + Locket + Codex

She's face checking some brush I'm in. I unload everything and get a full ult duration on her. She survives with 30% health, roots me after my stun and unloads, and literally just walks away from me. I'm left with about 20% health.

Had she been an AP carry, I would have died before my ult ended.

Even later in the game, with completed Rylai + Deathcap components, the enemy Draven was just eating shurikens and taking minimal damage. Thanks to the shortened range on Surge, I couldn't even punish him for eating my skill shot, because Surging requires me to get in his range and he's guaranteed to get one auto off, which if it crits, is going to do more damage than my Shuriken + Surge combined.

This is not okay. The risk vs. reward ratio for Kennen is way off right now.