Normally I don't override another admin's decision, especially if a user has been blocked on another wiki. In this case, a one-year block may be too harsh, for two reasons:
It was a first-time offence on this wiki.
On the other wiki, there doesn't seem to have been any kind of warning given that creating pages again that had been deleted wasn't allowed and there are no policies stating this. So the block was set without a recorded justification.