Perhaps, but rape and paedophilia are two separate things. He never plead guilty to or was convicted of rape (by force) but he did have sex with a minor. That does not automatically define you as a paedophile.
Not sure what you mean in the second part, he did "get away" from the rape charge - by refusing to plead guilty to rape the charge was dropped (the prosecution didn't want to force the victim to take the stand).
He did spend time in prison, yes just 42 days, which was supposed to be 90 but for some reason they released him early. Let's not get into a discussion about whether that was sufficient, the point was he did the time that was asked of him and was expecting probation as agreed on in the plea bargain.
The Judge then decided to disregard the plea bargain, threatened to send him away for life - he had the power to send him away for 50 years - and deport him involuntarily. And you're worried about chaos in the legal system? This is the same Judge who took sentencing advice from a reporter, took bookings for courtroom seats from friends and told lawyers on both sides what to say during the trial.
And everyone's comeback to that is, well he could always appeal.