Your point seems to be valid but with high risk comes high reward. If you invest in a coin when it is 100% down then surely you get profit when prices goes up. Buying a coins when prices are at ATH or going up is a mistake many people made and must be avoided.
Avoid getting into coins that are continuously going down and have no project update. MASS is one of such coin that is only going down and down with zero update from team. I will invest my money in some suitable coin rather then putting money here.