Meant to be cost saving, but doubt it saves that much.
IMO this 2 week break should be abolished as it is far too difficult to police it and I can't believe it saves significant funds.
The FIA would need to set up a HUGE taskforce, to ensure that each and every employee does nothing which is related to developing an F1 car, during the 2 week period. I wouldn't even know how this could be achieved without breaking all sorts of privacy laws.