Currently, some blackhat somewhere finds a vulnerability and sells it to NSO and then NSO sells it to various countries. If Israel forbids such deals, then the same "someone's" (without regard of where they're located - those deals are essentially unregulatable, you might anonymously trade knowledge/PoC for crypto) will sell the vulnerability to NSOv2 headquartered in Panama or Mozambique, and NSOv2 will sell it to the same customers.