Generally, yes. Although back then weed was also way less potent than it is today. If we go by hippy timeline standards where the drug was circulating, then yea. As most of it was already aged to the point to have low TMC chemical levels which were enough to serve as relaxants.
Higher dosages of TMC have been said to lead to more aggressive behavior/paranoia.
But I mean, anything in high dosage is bad for you. That is why liquor only comes to a certain percentage as higher percentages will mess the body up, if not outright kill you.