First of all, they made so much hype about this match, if they had at least half of the effort in climate prediction then it would have been a better thing. It's for sure now that there will not be a concrete result and I don't know any way of making a decision on the result here. We had waited for more than a year now for the world champion. All my bets were on India but it looks like that's out of picture now.
I mentioned earlier that they should have conducted a 3 or 5 test match series to try and avoid these issues. 1 test match is not enough to effectively decide the winner of such a long tournament in my opinion.
It looks like India and NZ will end up sharing the title. For some reason, Kohli isn't able to get the job done in big tournaments as @JSRAW pointed out several times earlier.