They say the charts are a reflection of human psychology, which is in agreeance with your first sentence, but note it is this psychology which impacts the probabilities.

They are less manipulated because there's less money circulating in crypto so that's also true, but manipulation still well and truly exists. Plenty of times massive sell walls have appeared to shake out weak holders.

Main thing to note with crypto is it is a directional market (wants to go up), same with shares. So eventually OMG's price will most likely reach a higher value regardless. But why buy high and hold through a downturn, when u can buy at support and then hold as it climbs? Depends if you're a trader or investor