When you really look into it, most of what is on 546's website are renderings and haven't been built. One of the other projects they are currently working on with RNDSQR in Calgary is way behind schedule (it was supposed to open in July IIRC) and way over budget from what I have heard. RNDSQR...
This is just a bait and switch which is really the downside. 5468796 lacks the ability to properly detail and design a building like this, while RNDSQR won't be able to construct it. This is only being presented to get approval of the 12 storeys.