The schedule is very often dictated by the dates a region CAN get, not the dates it WANTS. So I'd hesitate to complain about the spacing of the events.
I seriously doubt that any of those dates can be moved. It's likely a matter of running it the way it is or cancelling the events.

What I would like to see is fewer races count towards the championship. Very few of us (I think, at least I know I can't do it) have the time or the budget to do 10 ECRs a year. That number would look a whole lot better if it were a 6 or 7.