Why you should not buff Akali even if she's weak
The argument she's new and so far every champion that's been new has been buffed causing them to become overbearing in the game is true because it has happened. Nobody likes an Akali meta - her old kit was bad. This kit can easily be worse.
That's not the only issue though. She is the only champion with true stealth - thus, imagine how aggravating it will be with her high playrate currently if she was so viable.
Akali's current kit should have a winrate of 49% when viable as it should be mechanically endearing. How you use that shroud is important and in which matches she is picked is also important.
People saying she needs just slight buffs are forgetting Ornn, Swain, Kai'Sa, Zoe. Zoe is a nightmare of a balance - more than Ezreal. Akali's kit is in that nightmarish realm. Heck - we haven't even balanced Azir or Ryze yet to a great status.