Interesting that Inter's logo appears with the proposed stadium project in the background as opposed to Milan with the San Siro.
Edit: Also in general, football has been about money for a long time. Improvements and development cost money. Economic prosperity is not only an end in and of itself, but also a necessary condition for the existence of things, in this case entertainment.
I think people are just very afraid of change in something as traditional as football, but only time will tell whether this is a project worth pursuing or not. I mostly am concerned about the national leagues becoming meaningless, which would be a shame as it would create some real stratification.
All I know is that the people that thought about this know how to count their money and they must be pretty certain about the profitability of this project.