Those operations will have to adjust, but airlines were once that way. The EAL contract was 10 days off, the remaining days for reserves were 24/7. I got a call at 2am for an 0630 show time once. My corporate ops had 8 hard days off, 3 weeks vacation plus 5 personal days that could be used almost at will. If the planes were gone, no on-call. With 4-5 pilots per plane, being on call was rare. It wasn’t unusual to have most of a month off.
Different strokes for different folks. Horses for Courses.
GF