Maybe? There's a lot of other things to consider, such as the number of drinkers and whether it's customary to drink throughout the day or only during a small window (night).
Drinking 4+ glasses of wine all at once is quite different from drinking one glass at each meal and one before bed. Extrapolate that to weekly statistics and someone who drinks a lot of wine culturally can look worse than someone who only drinks at parties, and they could even look like an alcoholic.
This thread starts by talking about "alcoholism" which is an unhelpful term because problem drinking, harmful drinking, and dependent drinking are all problems even if they're not accompanied by physical addiction.
Both the things you describe - one person have 4+ glasses of wine on a night out, and another person have one glass of wine at each meal and another before bed - are worrying.
Binge drinking (and 4+ glasses of wine is definitely a binge) significantly increases risks of a number of harms from things like accidents, STIs, unplanned pregnancy, etc. The advice strongly recommends against binging, but if it's only occasionally it's probably not that harmful.
The other situation is a bit more complicated depending on serving size and wine strength.
A small glass of wine is about 150ml. If the wine is 9% ABV that would give us 1.5 UK units per glass. Two of those a day, 6 days a week, is about 19 units. That's more than the recommended limit which is 14 units per week, and it doesn't have more than one drink free day.
A larger glass of wine is about 200 ml. The wine might be stronger at 12.5% ABV. That gives us 2.5 units per glass, and 30 units per week. This is probably problem and harmful drinking.
For alcoholism we're probably talking about people who need a medically assisted withdrawal from alcohol.
A medically assisted withdrawal from alcohol would be considered if the person is drinking 15 units per day. That's two 750ml bottles of 10% ABV wine every day. This would be an outpatient programme.
An inpatient medically assisted withdrawal would be considered if the person drinks over 30 units per day. This is 750ml of 40% ABV spirits, or 4 bottles of that 10% ABV wine.
