The big providers in Canada own the "last-mile" network infrastructure connecting residences and businesses with the internet backbone.
The decision being overturned is the one that allowed the big providers, who were leasing the last mile to independent ISPs (because the CRTC set regulations compelling them to do so), charge said independent providers by the gigabyte at the same rate as charged to customers. The regulation was later amended to give the independent providers a 15% mandatory discount - still a whopping markup of well over a thousand percent.
The big providers are still allowed to charge more or less whatever they want to customers, and will continue to do so.
The decision being overturned is the one that allowed the big providers, who were leasing the last mile to independent ISPs (because the CRTC set regulations compelling them to do so), charge said independent providers by the gigabyte at the same rate as charged to customers. The regulation was later amended to give the independent providers a 15% mandatory discount - still a whopping markup of well over a thousand percent.
The big providers are still allowed to charge more or less whatever they want to customers, and will continue to do so.