Agree, the MoDA design was much more outside of the box, and buyers are probably there for that type of design, but like you said it comes down to the developer and maybe the economics were the deciding factor. Hard to say without knowing all the details. I can guarantee there are buyers who would liove the design, but was it a case of price? In places like London, NYC, Toronto.... you can find those buyers who will pay extra for cool.
London and New York are billionaire's playground. Anything is possible. See 432 Park, etc. Moda wouldn't be built in Toronto either. Parents of UofT brats have their limits too.