If Reeve has this power, why didn't he use it all the time for his job? Urban development, hmm. He could bring cranes to life and they could build flawless infrastructure.
I think we just found the explanation for all the inconsistencies with Midgar. The reason that the parts of Midgar destroyed in AC are whole again in DoC is because, well, Reeve told the city to repair itself. Glad we got that sorted out!