What I don't like is that they said on your appeal "we are willing to give you one last chance" like he actually hacked but this isn't enough proof in my opinion so why make it seem like he's being given a extra chance. If this is the definition of hacking I'm sure most of the players who have gotten lucky or flicked in a general direction would be banned by now.
I don't know the full situation but if this was the case I think a mistake was made and it wasn't thought through enough especially if you didn't admit and this was the only thing they could base it off.