If I didn't know it was a real project that took place, I would suspect someone just photoshopped in an extra two floors to the parking garage.
The top mechanical has never been a focus for Great Gulf, just look to any one of their previous or under construction projects. They've learned a lot along the way (X to X2), but they still have a long way to go. It's a shame considering the prominence of the building on the Toronto skyline. There's also a good chance they ran out of money from the unforeseen lobby/entrance issues.I believe it has only worked on that one side partially ever.