I can't really agree with your opinion eventhough I know that it is shared with several people from our management.
I don't think that most of the pilots leaving LG now thought of LG being a flight training school for CV but rather decided to leave LG because they saw no future within LG and didn't like the idea of becoming a Q400 captain in 15 -20 years when they have the possibility to fly 747-800s around the world and earn more money within a more "future-proof" company.
At least that's the way I see, and most probably the reason why I will try to switch over to CV. In fact, only 6-8 months ago, I never thought of leaving LG but that changed now because of the doubtful future of LG and not because I believe that my "CV flighttraining" is now complete. No offense though.