A 13 meter reduction doesn't change the character of this building, so why fight it (let alone on SSP), other than to get a few extra meters for the heighters? However that same 13m, viewed from Harbour Centre, could determine whether it will not longer be possible to, say, see across the inlet to Lonsdale from a prime touristy observation point.
This is almost as embarrasing as that long debate on the Trump thread about how many floors left till completion...
guess what, most of your guesses will be correct at some point +/- a few weeks