I fully disagree and believe the problem is more the architecture than the colour of glass. How many colours are people willing to use on a building anyway? The logical end to this line of thought is a skyline that looks like a box of crayons. A lot of the usual complaints about transparency and seeing the blinds makes me wonder if people are longing for that mirrored crap from the 80's or on soulless dubai proposals that look like uninhabited sculptures for that very reason.
For me, the ideal glass colour is 100% clear or white from an angle. Technology has brought us past the time when windows were small and cladding was everything. Now we can make the envelope disappear and let the insides tell the story.
There are countless beautiful historic cities all over the planet, yet all the buildings in those cities are identical in style save for a few landmarks. Buildings only looked different if their purpose or scale was different. The need for architectural variety for the sake of variety is a very recent, post-modern, idea. One has to assume that it is to make up for a declining aesthetic on an urban level, and our inability to resolve it with a template that can be repeated and still looks good.
Jodhpur, a city where all the buildings are blue:
http://www.thecoolist.com/wp-content/uploads/2012/02/Jodhpur-India-4.jpg
even new buildings:
http://luxedb.com/wp-content/uploads/2011/08/Raas-Hotel-in-Jodhpur-India-2.jpg