Is Toronto in decline?

Following closely on post about municipal taxation is this article about the decline of the "middle class" in Toronto.   I reject it.   Having grown up in Toronto (1968-1993) for much of the period under discussion 1970-2005 - all this chart reflects is the flight to the suburbs.    It also shows that 39% of the city fluctuated between +/-20% around the average income level.

Finally, this deranged liberal editorial in most recent issue of Walrus Magazine.  Why is it this magazine us always moaning about not recieving finding by something/someone - in Nov 2009 was all about underfunded higher education (written none other than by Roger Martin, Dean of UofT Rotman School)