The only reason AC never had any Far East routes was because they didn't want them and make no mistake, if they wanted them they would have had them. When they were a Crown Corporation they chose the then lucatrive European routes and the government wouldn't let CP Air anywhere near Europe. Remember this was all before deregulation. The only overseas routes CP Air could get were the then less lucrative routes in the Pacific and only years later when it was obvious the paying routes of the future were in the west then AC wanted them. If CAI would have went bankrupt they still would have ended up with them anyway so the merger really wasn't needed to secure the Far East.AC had basically no Far East routes
The merger happened because it would have been political suicide for the Chretien Liberals to deal such a blow to the west by letting CAI fail without government intervention.