I'm against it but sadly things like the examples you posted along with zoo's may be the only place left in the future to see these animals and may provide a way for re-introduction. Lots of wolf hybrids up here and even some that have tried to raise wolves. It never works out well for the animals. A wolf becomes a wolf by design at about six months. Unlike a dog they stop having eye contact with you. There have only been 8 documented cases of wild wolves predating on humans since documents have been taken which is about 300 years. The same cannot be said about hybrid pets or wolf pets.

Interestingly enough I just finished watching a documentary recently on a new species here in Canada that was first seen on the east coast but has moved on west as far as Alberta and British Columbia. I think I may have seen one here a couple of weeks ago. Its called a "coywolf" Half coyote/half wolf. They seem to be a little retarded and are killing horses and even donkeys out west which are fearless and used to protect herds. They seem bold and may be responsible for a couple of fatalities. Anyway I digress. Interesting topic.