Lol, how could you possibly know that? Speculation your honor.
If you go back and read my post, you'll notice that I very explicitly did
not claim it was certain fact. So why did you reply as if I had? Also, why didn't you make the same reply to the other speculation that I was replying to?
nah hed have loads of defensive wounds up and down his arms in that case.
not a poke hole in his leg.
if somone is trying to stab you they dont fail and put a 1cm hole in your leg then stop they end up hitting your arms lots and lots in a few seconds as they swing/flail wildly.
This wasn't a straightforward determined murder attempt, which would often involve the victim being stabbed several times before they even knew they were being stabbed. There are several examples in just one quote from Reddit in one post in this thread of situations in which the attacker stabbed or cut the victim once with no indication that the attacker was "stabbing the air" (as you put it) and accidentally stabbed the victim.
Also, when the attacker is very drunk
and the victim knows they're coming at them with a knife they have much more of a chance to evade them.
EDIT: The cut to his leg required 3 stitches and was also reported as being 3cm long. The two cuts on his hands were each approximately 1cm long, so that's probably where the confusion occured.