Albertans aren't wrong to be concerned. All you have to do is look at #brexit and see how well that worked out - all the concerns listed came true.
https://www.cbc.ca/news/canada/calgary/deborah-yedlin-calgary-rene-levesque-nancy-southern-9.7121058

Alberta separation talk already affecting more than a quarter of surveyed Calgary businesses | CBC News
Ongoing discourse around the prospect of Alberta separation is emerging as a top concern for Calgary businesses, many of whom say the debate is already impacting the local economy, a new Calgary Chamber of Commerce survey suggests.