Good thing I don't follow any sort of plan then.
However I do wonder if things would be any different with no alcohol.
I don't really expect they would though, plenty of examples of very successful athletes out there who consume alcohol, one of my ultra runner friends even uses diluted beer (usually diluted) during 100 milers and another uses diluted red wine often mixed with chia seeds among other things. In fact the only real training plan I have actually read up on, Maffetone's The Big Book of Endurance Training and Racing, even suggests modest amounts of red wine with a meal.