It must have been a logistical challenge operating such a long-line route just fortnightly, crews being away from home for an age.
Could be.
OTOH, I think you will find the tech crews of that era were not the whiney folks of today, who complain of being away from the family for more than two days, or if the autoland or FMS doesn't work to perfection.
In other words, they were tough, and did the job for which they were paid, with few complaints.
And yes, I flew DC-4's for a short period, before moving on to DC-6's, which were far better.
Especially the DC-6B.
Superb, that aeroplane.