I in the Sky,
1) answer to your question is No.
2) Doubt the FAA define it as you have, but I wouldn't know as I don't consider them an authority on these things so don't pay much attention.
3) This has very little to do with absolute alcohol intake or blood levels.
Cavorting cheetah.
As I said, the diagnosis of alcoholism is more complex than looking at four symptoms. Craving (dipsomania) is merely part of the picture, a diagnosis of diseases of this kind can not be made purely on that one symptom. However it is highly suggestive that somebody who describes 'craving' may have a chemical dependancy which is why I suggest they talk to somebody about it. They can make a diagnosis better than us lot on a bulletin board, there may well be nothing in it. It's interesting that this suggestion is ridiculed, but there may be nothing in that either.