if they were correct that LSD is special to do this, our cultural timeline would be so different, our biggest musicians and cultural influences woul dall be LSD addicts and so would the population. THe realized it worked less well simply cuz its not very doable constant use, in society, population.
booze, opioids, pot, work much better for the goal, as they seemlessly integrate social use, causal use, addiction level use, and its not till your brain was trashed, you efven think u have a problem.
whereas LSD is so dramatic right away you think satan is talking to you with firey wavy lines everywhere there is no way to use it frequently enough for an average person it can get the mechanism of action damage brain damage HPA cults make sense. IT CAN work, as they did with many trial runs
but they realized there are much better agents and those became the agents americans know and love told to us to use by dare agents "pretending" to educate and musicians and celebrities many of whom deliberately addicted to control them