Her ult range is shit and her E requires her to have hit you beforehand, super short range and telegraphed as fuck. You always know it's coming and you can easily dodge it. It's not on demand.
Old Akali had a 700 range point and click ability with virtually no cooldown at all that meant she could just chase and catch you 100% of the time. Similar to what Kassadin does once he gets rolling.
Akali has the drawback of being extremely low ranged, having very high energy costs early on and having no real mobility. Seriously. Her E has like 16 seconds cooldown until she starts putting points into it and that's god awful. Her Q is short ranged and she can use it a maximum of 2 times before sitting there unable to do anything. If she drops W she can use it one additional time, but that means she won't have shroud in the next 10 seconds after it expired and no way of aggressing you.
Seriously, I played a ton of Akali. People lose their brains once she uses W, they walk INTO it, allow her to Q auto them and Q them again before they get out. It's these people who will rightfully lose 60% of their HP for doing that who then come to the forums or reddit to leave these steaming piles of shit they call posts.