Good article but not sure where this came from??
I would not perform a pre-drywall inspection with insulation installed! There is a reason that professional insulation installers wear respirators and protective suits when they install the insulation. Airborne fibers and contaminants can still be present even after the insulation is in. Once the drywall is up those are typically contained and not a problem.
Another reason is noted in the article that very important details WILL BE obscured! For the same reason I won’t do the inspection with insulation in I certainly would NEVER move insulation to see any of those important details.
If visibly seeing the insulation is important (Vs. using thermal imaging later) then an additional insulation inspection can be performed using proper safety gear and the time in the house is much less than a full pre-drywall inspection.
I agree, but not because of air quality. You can’t see much with the insulation installed. Air sealing should be intact for the inspection though. A pre-drywall inspection is done at the same stage as the framing inspection by AHJ, which is before the main insulation is installed. Insulation is a separate inspection by AHJ in my area. I think an ICC cert, or a thorough knowledge of the building code is certainly recommended for phase inspections.