Traditionally at our company, FO's stayed in their seats long past the time they could have upgraded to Captain.

This allows more junior people to upgrade to Captain sooner.

If "every dollar counts", then expect a paradigm shift. More people will upgrade to the left seat at 100%, because their retirement depends on it.

This is another hidden ramification of the pancake plan.

It will take junior people longer before they can upgrade to Captain.

I'll bet you a stack of pancakes my prediction will come true.