Not all dust is the same problem
Dust from foot traffic, packaging and general activity is ordinary housekeeping. Dust generated by a process may contain material with its own handling requirements, and the site will know what that is while the cleaner will not. Treating both identically is the default when nobody has raised the question, and the default involves a cleaner sweeping something they have not been told about.
Method matters as much as material. Dry sweeping makes fine dust airborne, which moves the problem from a floor to a breathing zone and distributes it across a wider area. Where a site generates process dust, the appropriate method is usually extraction or a wet method rather than a broom, and that decision should be recorded in the scope rather than left to whatever equipment is available.
