Denge Dude,
the free drop regulations were relaxed for Op Bushell as the 'normal' SOP for free drop was 50 feet and gear up. The USAF may have a different modus operandi. But whatever fits the scenario and is safe for the crews to get the job done. You are probably right to be a mite cynical as to have any effect the airdrops need to be continued as long as possible and in greater strength.