I assure you whatever "commitment" you think would clarify Kane's intent to leave would only upset you - and the situation - worse.
I'm not sure how the situation could be much worse.
Right now Ange is preparing a team to play with Kane up front. This includes giving Kane minutes in friendlies and presumably putting work into the system with Kane as first choice in training. This is a waste of time if Kane is off and those minutes should be given to Richarlison, Son, Solomon or whomever is going to replace Kane in our new system. It's kind of like taking Hugo on tour and giving him minutes instead of Vacario. If Kane is leaving, then Levy should just get it done.
Also, that 80-100m makes a big difference to our transfer plans. A lot of things are on hold and the manager is being forced to tread water by this nonsense.
Either sign a contract or fuck off. And if Levy is the one sitting around with his finger up his arse because he is yet to make a decision then all I can say is that he has not learned a thing. Postecoglou needs clean air, not this bullshit.