That's the issue. People who are unaware of Akali game play are commenting that the changes are fair and balanced.
The new passive directly conflicts with her playstyle. The health comes on first basic attack and damage on second basic attack. Akalis main source of damage is from Q proc which is her first basic attack. Not to mention the heal is wasted since you usually dive someone with full health. The passive was meant to help Akalis extremely poor pre-6 laning phase but it hurts her burst overall. Reducing sustain due to CD now too.
The W change is a complete nerf. The dash in the shroud is completely useless since Akali already gains movement speed in shroud plus her starting item 99% of the time is boots so dodging skills shots within the shroud was never an issue for Akali mains. The ability to cast shroud on your mouse and not your character is EXTREMELY important. That is the hugest nerf on her W. When laning pre-6 as Akali you cast shroud AHEAD of you engulfing the melee and caster minions. This allows you to be able to cs somewhat safely due to you being melee and most mid laners being ranged. Also, your shroud gives vision so being able to cast it on bushes helps you from face checking. The shroud is also used for juking since you can cast it on corners and run around the walls within the shroud completely juking your enemy. Also, the shroud can already be used to jump over walls via vision granted and her R. And the shroud also provides a slow on your enemies which is nice if you're chasing one down or trying to slow them from catching you or your teammates. The W also used as a threat to enemies since they wouldn't know if she was actually in it too. All of the above cannot happen or happen VERY poorly if the shroud is only casted directly on top of you now.
The E is a damage buff but a CD nerf. The E is really just used for wave clear and icing on the cake damage. It was never a good source of damage for Akali, her Q and ult were.
HER ultimate wasn't buffed at all. I think you read that wrong. The base damage AND the ratios were both gutted. Not to mention the CD is a static 2 seconds at all ranks, which is the BIGGEST problem. Akali is melee, she has to either be sticky or burst you down. They gutted her damage AND reduced her stickiness. Leaving her, a glass cannon with now no sustain due to her passive being gutted, not being able to deal damage due to major damage nerfs, and not being able to be sticky due to her ultimate nerfs, a sitting duck.
These changes were nothing but absolute gutting of Akali.