The house cleaning issue is easily explained. You are paying them for x number of hours of work. If you want that work to be able to advance to the deeper cleaning that you don’t want to do, then you need to reduce the clutter so that they aren’t wasting their time working around or cleaning up clutter, such as kid’s toys or your clothes strewn all over.
An analogy is education. If a student shows up having done the home reading assignment, is well rested and prepared to learn, the quality of learning that can occur will be much greater. If they show up late, hungover, tired, and have done zero preparation for the class, the first half or three quarters of the class will be spent trying to get them up to the baseline of where the other, more prepared, student was when they arrived that day. The class will get to a much deeper level of learning with proper preparation.
Same with cleaning. The cleaners will be able to spend more time on the deep cleaning and detail work if they don’t have to fight the clutter.
I’m not sure “dusting” fits that scenario, but generally straightening the home prior to cleaning will be very beneficial, in my opinion.
*edit-Ron said the same thing in much fewer words.
