Will God protect the Kabba himself?

God in Sura Feel 105 talks about small birds destroying the army of Abraha by dropping small stones on them. But the black stone was stolen from Kabba in 930 and recovered after a 20 years later. Some say it has even been fragmented. How can I say that God will protect Kabba when he cannot protect the black stone. > 1. Have you not seen how your Lord dealt with the companions of the elephant? > > 2. Did He not make their stratagem go awey? > > 3. And He sent upon them birds in flocks, > > 4. Pelting them with stones of petrified clay, > > 5. Thus He made them like straw eaten up.