I don't think that Le Bourget is hemmed in on all sides by houses, etc? I could be wrong - have only ever experienced it from the train station side of town.
If not, perhaps they will have the space that is not available to the Reds at Farnborough? That, and the French make their own rules of course.
From Jane's -
Red Arrows display at Farnborough to be curtailed because of safety fears | IHS Jane's 360