If an extraordinary general meeting is called, and the terms of the covernant are upheld (and in essence it should be) resulting in the nursery closing. May I suggest that a second EGM follows quickly after to discuss the covernant itself.

By upholding the terms of the covernant, every other business operating under its terms must be closed as well. There can not be one rule for one, and one rule for another.

(I am not a member of the association)