It doesn't matter that Randy wants to perpetuate the same myth, it's still misinformation.
No airline or air safety authority requires or recommends discharging batteries for air travel.
The myth may have been started by DJI themselves.
DJI No airline or air travel safety authority asks passengers to discharge lithium batteries before flying.
All airlines lithium battery policies are very similar as they are based on the IATA recommendations (which also make no mention of LiPo bags or discharging):
Documents and downloads complementing the current edition of the IATA DGR.
www.iata.org