In my case, your guess is right on! I am very interested in this building/Main and while I have always read through many parts of this forum, it made me finally sign up.
I also understand your points about the vantage points. How strange that they are relaying this information. Their version made sense at the time while in the seductive showroom environment but is probably some misinformed nonscientific information!
I don't pretend to be neutral about this building or area as I have been interested in both for quite some time but I do believe it is more special than many other developments I have followed. Perhaps in location rather than architecture or features. I have always loved the curve and topography of Main between 17th and 18th. The eyesore of a Ford dealership wasn't doing it any justice. When I read up on the history of the curve I learned that, "this is where Vancouver and South Vancouver came together in 1929, and had to somehow have their non-aligned grids connected."
Something about this area, that curve, Heritage Hall and all of the history feels special. Like I said, I don't pretend to neutral and my love for Vancouver is probably causing some sentimental affection for the project
This intriguing article also described the potential for 3333 Main to become piazza-like and to transform this part of the city. It is an interesting read about what could make the project more special than most.
http://regardingplace.com/?p=3100