Compairing these herbal blends with cannabis is not really realistic. Its just a completely different thing. Everything that is called a subsitute (and these blends are often named as cannabis subsitute) is lower in compairason to the real thing.
These blends are mostly smoked by people who are having a hard time getting some real weed or want to experiment with some other stuff. For the trip mix I cannot say I never smoked it but what I heard from smoking amanita is that is not all that.