Maybe I can give my 2 cents. When fish are in a bag the oxygen in the bag drops which also drops the ph in the water. Lower ph will make ammonia in the bag less lethal. When you open the bag and oxygen hits that water the ph will rise again and the high ammonia in that bag will rapidly become more lethal. For this reason I feel that drip acclimation can cause more harm than good. I always float the bag of water to get the temp right then the fish get strained in a net then in the tank they go. The high spike in lethality of the ammonia when you opened that bag can easily burn the gills hence the gasping and quick death. Lots of good info on the topic


