Loyalty to one's employer is not rewarded in this world. If you want to improve your career, fight for improvements at your workplace while at the same time, look to move up elsewhere.
Waiting for the flow is a joke that will disappoint you in the end. Flow has never been less than 12 years so far. There are 4 major airlines currently hiring with minimal requirements, as well as 2 quality cargo airlines. Update your applications every week. Try to beat the flow if possible.
These are my personal opinions and not the opinions of any other entity or employer.