Well, I have to disagree with you on that one. The original Metro Centre proposal that produced the tower were for a tall communications tower, with three open-legged supports that sported an observation deck. According to the architect Ned Baldwin, the public observation elements were conceived from the start as integrated with the telecommunication aspect. In "Accidental City", Robert Fulford mentions that the president of CN at the time signed off on the design of the tower with the instructions that it was to have a revolving restaurant and indoor and outdoor observation deck. What is now the 'Sky Pod' evolved out of the design as the initial height requirements grew. But none of the building's elements that we now see were ever absent from any serious basic proposal. The tower was never intended to be void of public space, say, in the manner of a guyed mast.You do know that the CN tower was built as a communications transmission tower first and foremost and the observation deck, etc were the extra 'add-ons', right?
The tower's streamlining did not just serve an aesthetic purpose: designers were aware that Moscow's Ostankino Tower (at that time the world's tallest) had a severe icing problem. In the winter, enormous chunks of ice were said to plummet from it, as the exterior was (and is) bristling with tons of exposed antennae and girders. The CN Tower's smooth surfaces - stainless steel, teflon, radome - were specifically engineered to avoid this.