It already looks far better, but I would swap the massing around so the bulk of the height lies towards the ROM, with the building stepping down towards Queens Park- they could even compensate for some of the lost density with a few additional floors. That way, the building is far more contexturally appropriate, plus there's also the potential for continuous terraces with awesome downtown views that will never be obstructed.
Better not disagree with Alex Bozikovic about it on Twitter. For him, you either like it, or you're wrong. But I digress.
The reality is, the architects may have done a valiant job, but it's still a small and difficult site with too much program and various faculties competing for space in the new building. On first glance, it appears that the challenges outweighed the way they were resolved in this case. I have yet to speak to anyone else from the architecture world who sees this project as a victory.
It's not an issue of incapable architects or lack of talent, that's certain. It's an issue of client demands / client's brief (with site and program under that umbrella).