You can't own all 49% as a foreigner, which makes it much less attractive to invest in the airline industry in Canada. I'm not sure we have a lot of rich Canadians who want to get rid of their wealth by owning an airline. However, we have a lot of rich foreigners who would see opportunities if there were some changes to the rules in Canada. There would be greater investment.
Let's keep the 49% rule so Canadians are in charge, but allowing one organization to have the full 49% would be an interesting and helpful change, potentially.