Hacking into computers is a crime and in severe cases extradition is appropriate. Yes, the victim of a crime feels angry and violated. I don't think anyone disputes that. I have had a forum I ran hacked and as it was hosted in a VM on my desktop I had to re-install my whole desktop to be safe.
When I get spam telephone calls from overseas in complete violation of British law I wish the RAF could bomb the Indian and Chinese call centres, but it's a momentary expression of my feeling of violation. It would clearly be a disproportionate response.
Whether this individual should be extradited is a matter for the courts considering all the details of the case and making a balanced judgement. Generally courts take a lot of care and when the public disagrees with the results it's usually because there are aspects of the case the media have chosen not to report, as they like to create scandal and making the courts look rational doesn't suit their scandal-mongering agenda.