However, over the long term with LH expansion then the time to command for those already in the company will improve.
I think that should say 'the time to command for some of those already in the company will improve'. If expansion creates one hundred new commands, then the only ones to benefit are at best those one hundred people who obtain early commands as a result. Everyone else is simply waiting for someone to retire. If you are the one hundred and first person next in line, your time to command will not be altered one bit. So in summary, the majority have made concessions for the benefit of the few.