Whereas I applaud zoos taking in rescued bears, their value for conservation breeding is minimal. These along with the rescued bears - ahum - just take up space that is better suited to breeding endangered forms of brown bear.
Welsh Mountain Zoo at Colwyn Bay is a fairly traditional animal collection, chiefly interested in the display of animals as a money-making venture than anything else.(not critisising but that's a fact..) So I think they took these bears because they were offered and they have a bear enclosure. I can't imagine them making any effort to display bears of rarer subspecies or species though, its just not their style..