Well yes and no. No one would really expect a 60 year + sentence for unauthorized access of computer systems without any major extraction / use of the data obtained. The crime was committed in the UK and it's really a legal trick to say otherwise, and he should have been tried under the computer misuse act here.
The Americans seem to want to make an example of him, which is something the UK shouldn't be supporting in my opinion. The Americans should be happy that we'll deal with the case, and leave it at that.