When wages are already close to the marginal value add, increasing the wage floor means needing to cut hours. When wages are not, then increasing the wage floor has little effect on hours or people hired. If there's already sufficient buffer, it might even result in fewer jobs over time as companies attempt to get by with less wiggle room in headcount.
Just a thought.
Anyplace with a geographic monopoly demonstrates this. Rest Areas, large institutions and places like airport usually require a cut of the gross sales are part of the lease agreement.
I know of one where that cut is 15%, but the restaurant charges a 30% premium since it is also a near monopoly within the institution. People are still buying coffee and burgers.
Because not all work is the same. If you clean the equipment weekly it breaks down less often than cleaning it monthly. If the cost of an employee increases then the cost of more employees can exceed the cost of more equipment failures, so you cut staff (or hours).