The planning process doesn't rule out imposing such costs on a developer. And it's perfectly possible to run a residents' parking scheme where restrictions are only in place from, say, 1.00pm to 6.00pm (or 6.00pm to 11.00pm) on event days. The rest of the time, parking can be unrestricted.
It will be interesting to see what happens. As I said, there'd have to be a mass of people parking on Saturdays to have an impact - weekdays are a different matter though, there are far fewer parking spaces available then.
Local authorities of Bolton, Derby, Southampton, etc, etc, did everything possible to help their clubs move.
As did ours. I don't think anybody could have complaints about B&H Council.