I think @MPH is attempting to excuse him on the assumption that it's possible Hamza may have unknowingly teetered over the edge.
Unknowingly is the key word. Most sensible people know to just not entertain the idea of any drink driving, or perhaps cap it a pint.
Others believe (incorrectly), that they can remain below the limit at levels that are actually above the limit. Perhaps this is after 3 drinks, or 2 quick drinks. It'll vary. If this were the case, Hamza would be stupid. Stupid, but perhaps not deserving of widespread disdain and condemning.
Killing somebody by catching somebody while waving a knife about is a little different from full on going for someone. Both are ridiculous, but the judgement and punishment would vary and it comes down to intent / awareness.
However, given his rap sheet, and given the charge of dangerous driving, I think it's safe to assume that the above set of circumstances do not apply.
And even if they did, I'd have less sympathy for a footballer who should know better. Not because we hold them to higher standards, but because he has the luxury of very easily paying for alternative transport. You'd just get a taxi, wouldn't you?
Irrelevant though. We literally know he was driving badly. And you wouldn't refuse to co-operate (at least when back at the station), unless you were fairly certain that you were over the limit.
I don't know why anyone would defend him.