Let's look at it from a different angle.
Alcohol is as much a drug as coke, smack, crack, hash, roids or whatever your choice is & indeed a highly addictive one.
So let's hypothetically say that his tests showed that his blood/alcohol level was way over the limit.
Would the anti Livermore brigade feel the same way?
Tony Adams regularly turned up ****faced as he freely admits & nobody gave a ****.
Is coke a performance enhancing drug? I don't know, I've never took it.
Even if it is what about cortisone injections? Kills the pain therefore enhancing performance yet they are legal.
Bizarre imo.