He has argued all along that if he left he would be whisked away for nefarious trials by America and if that was the case then this 5 year date of his hiding will make no difference. Unless he just wanted to avoid the trial for whatever reason.
Still for a trial you need a victim and in this case, that victim was not Assange and we have a trial and victim who will not see justice or any form of trial - fair or not. So can imagine how they feel about this.