Moderate drinking is certainly a more appealing goal to many problem drinkers than total abstinence. But medical professionals and additions counselors are unanimous in their opposition. Monday's cold is the flu on Wednesday and pneumonia on Friday.
Most alcoholics are sure they can control their drinking on the next occasion.
The result is killing alcoholics, who can expect a normal lifespan if they remain abstinent. Talk of harm reduction just feeds that denial. Most research fails to adequately separate true alcoholics from alcohol abusers or problem drinkers, which makes reports of success misleading. We can't know how many of the latter may progress into true alcoholism. Of that fraction, most were female and none showed clear symptoms of true alcoholism.