As far as I can see, that was not the complete and definitive reason for the ban.
"
viewers objected to the visual comparison that a website on a 20meg service would not load any faster than with an 8meg service"
That can be looked at two ways. Maybe for minimal sites, they will appear to load no quicker on an 8Mb connection compared to a 20Mb connection.
However, if a site has heavy content such as many images, flash, etc - it will generally load much quicker than a slower connection.
Matt