I think the examples prove the point. All except the one MetroMan shows (reaching out to the water) are much taller buildings or the Sydney Opera House. One thing more... the WT precinct plan does not allow the buildings to be near the water and are not allowed to reach over the public boardwalk spaces.
The other notion is true too. The Corus (Chorus?) building is a media office headquarters, not a Opera House or other theatre/public building. I think the pciture from London on the Thames, above, is the Greater London Assembly -- another government building.
Perhaps if we want a vibrant mix of uses, we should welcome the Corus project and save other spots on the waterfront for an OCAD or government building. There is a hell of a lot of waterfront in Toronto, why hasn't the government or WT invested in such a public building, like a Toronto museum, instead of attack the Corus building?