He did interfere in the end. But it's a well known rule in comics that powerful beings such as angels, celestials and such are not allowed to directly interfere in the great scheme of things. Because such beings are so powerful that they are a deus ex machina unto themselves. If being like Angels or The Spectre were…

I wouldn't completely trust the grades here in AV Club. The last two episodes were pretty solid but only merited a C and a D. I would suggest watching them.