Well...as a permanent physical condition, of course not. As an emblem of "organic urbanism", though, maybe it's better to catch one's breath before applying too much of a blockbusting heavy hand. (Indeed, recent development like the Hazelton and 100 Yorkville demonstrates the virtues of a "catching one's breath" approach--even if, paradoxically, latter-day Jane Jacobs was part of the "anti" forces. As such, maybe they're the Village By The Grange of the 2000s.)
And, frankly...the key to "world stage" relative to Toronto isn't to focus upon Yorkville and its pretensions. It's to look *beyond* Yorkville and its pretensions; which is why I drag Kensington et al into this. And, the same can go for other cities: NYC, Paris, et al.
Ultimately, "world stage" is to urbanism what waxed pubes are to feminine attractiveness. And, sorry, kiddo; I like urban bush...