I dont know how you guys can say she is any weaker. First of all she became more akali like, yes she lost damage in bouncing blades but she can now trigger a mark with a shunpo or AA which in my opinion seems actually OP. Second they added her W to her ulti so nothing missing there. Her NEW W seems quite worthwhile since your not really losing damage in BB if you can land the mark. To me all that really happened was she got another damage ability.
If her ult is quickly interrupted, then she will do a little more damage now as they move much of her ult damage to her W, but some of her ult damage simply disappeared. Over-all, they've reduced her risk and reward, and made her laning far weaker. With some number buffs, she would be fine, but the intentionally released them low to be careful and not have her come out OP (Morello admitted this in Tiensen's thread) the same way they did with Eve and Twitch and the philosophy that 'we can fix it later if after a few patch cycles she's two weak.'