It may have simply been a gesture of good will, The do make alot of money off tourism there and even with Egypt having no real liability, they may have felt it was an honorable act of kindness since that divers life will be forever changed and his road to recovery will be a long one. In the early reporting of the story of the attack I seem to recall them suggesting the sharks were in the area due to a vessel sailing thru and dumping bloody sheep carcasses over board essentially chumming the water.