interesting! Personally i have never encountered any issues nor symptoms- but dully noted!
However i must sort of disagree with the: Bag-> tank immediately thing... Multiple reports say that is stressful, and sometimes Very stressful. Personally when i acclimate i get a 5 gallon bucket (clean of course) and slowly empty the bag into the bucket. Slowly over a as said 2-4 hour period having a 1dps into the bucket from the tank. Have i had any issues doing this over the years (to both inverts and fish)? Not so far.
Edit:
via the link he says he acclimated them for 1.5 hours and says when he bought them, the bag was milky and in bad condition. But in my case i buy from reputable breeders, etc. i do see the point in that thread that adding them ASAP is a solid method. However i have personally experienced more negative things (and seen more negative reviews) in doing that, than drip acclimating. Even with evidence on both sides (drip vs immediate), both seem to have equal numbers of pros and cons.