It took me decades to realize that, in Chain of Command, Riker was the one in the wrong. Jelico may have been a bit… difficult here and there, but Riker was being an insubordinate child.
Riker came from Alaska and his dad seemed like the 24th century equivalent of a conservative Republican, so maybe he valued the stupid capitalist Protestant work ethic that has no place in a post-scarcity society?
Both Riker and his dad came from Socialist Space Utopia capital: Earth. They’re a couple of impossibly-privileged people slap-fighting over hardly anything. There are worse things than father-son discord… and few things older.
But help me out with the size of the roster. Say you have 25 people needed to operate 25 stations. 3 shifts so you have 75 people on your ship.
Then you go to 4 shifts without stopping at a start base to pick up extra 25 people. And you have to put 1/3 of your crew in double shifts, or you spread it out so everyone picks up an extra shift 1/3 of the time. And in average everyone works as much as before.
Redundancy is efficiency. No ship would operate with exactly 75 people to cover 25 stations in three shift. Either some of those stations are redundant, or you have more than 75 people. Otherwise, one illness or injury would bring down the whole system.
A switch to shorter shifts would reduce redundancy on each shift, but each worker would get more rest and be less likely to burnout or get sick, even if they have to pick up occasional double shifts until they can take on more crew.