Some serious 20:20 hindsight being applied here. He came back with a 3:45 mile at Pre last year after a similar period of time out with a very similar injury. It was not fantasy to think if he turned up to race he could medal.
However, recent interviews about the injury have not been encouraging and his team told him to not to go, but it's all guesswork for us as we only see media reports.
I think he was just desperate to compete and must have known he wasn't ready.
As for those of you talking about the down votes, the voting system on these boards are absolute crap. Everyone just upvotes what they like to see and it doesn't reflect reality.