Well, Akali didn't have a rework yet.
It was more of a mini-update. I don't like the term "clunky" being used when describing certain champion's playstyles. This is what the word "clunky" means. And people use it almost all the time to describe less fluid play style they think a champion should have.
Someone like Yasuo and Fiora have fluid kits that match their play style. These champions are not at all "clunky" by this definition and yet, they seem to get all the hate from the boards for being strong when being played by an experienced player. So, champions who have fluidity are always looked down upon and are being mocked as "worst balance cases".
On the other side, champions like Jinx who are basically AA oriented, are often perceived as "clunky" when they're not top picks because they have less things to do in a situation.
"Clunky" isn't a bad thing.
Not all champions can have seamless and perfectly fluid kits. These champions do often bring with them a lot of complexity and if every champion in League was as complex as Fiora and Yasuo, League wouldn't be as diverse as we have it today. Some people like playing Annie, some like playing Yasuo. Most of the champions are somewhere in the middle.
Now, onto the Akali discussion:
Akali never had a fluid kit, in my opinion. As an oldschool assassin (assassins before their update), their efficacy was measured in how fast they can kill a target before the enemy managed to respond to them. This wasn't engaging gameplay at all. It felt good for the assassin player to instantly delete an enemy champion from a fight but for the other side, it wasn't fair to disappear in a fraction of a second, robbing them of any kind of counter-play they could've had.
Even i (not Akali player before her mini-update) also had issues when it came to adjusting to her new playstyle. Because i remember that Akali used to start being hard to deal with after 6 (her power spike) and i was instinctively engaging, hoping i could kill people before they drop me. Overall, it was fun learning that Akali wasn't having an easy job with deleting people anymore and figuring out how to plan ahead but her update also had a side-effect.
She's more of a hybrid of an Assassin and a Skirmisher now. Skirmishers are champs like Fiora and Yasuo where Assassins are champs like Zed, LeBlanc and Fizz.
Akali can work as a squishy assassin but her all-rounder builds are mostly tanky on the side, with a Gunblade. Fizz is doing exactly the same thing but with BorK again. Inherently bypassing his squishiness and trading burst damage for DPS that can still kill people in a reasonably short period of time.
On the side note, I always considered Akali as a hybrid champion (AD and AP respectively) so if Riot ever decided to put her on an official rework list, i think it would've been great if she could utilize both pure AD/AP or mix between both builds.