I'm not an expert on caribou, but I know a bit about the issues brought about by the effects of climate change. The UN has a boreal forest committee, and Canada is on it. The committee analyzes the impacts of climate change, including as they relate to caribou. I think all the blame is being placed on the forest industry because climate change affects forests in their entirety. I would say the real culprit is climate change. Even if the whole area were covered by a bell jar, the caribou would still not be adapted 40 years later. The area would have to be moved a thousand kilometres north.
I think the issue is being confused. Tackling climate change is what will help caribou. Smaller-scale solutions can also be implemented on a regional level. Right now, all the blame is being laid at the industry's door, but I don't think that accurately reflects what's happening.