So far, no drug (other than ketamine, but I will leave that out of this discussion in order to make my point) has even come close to leaving me with lasting, permanent changes to my psyche, as MDMA has. LSD sure has served a very important purpose to me, as have other tryptamines, but nothing (including several other phenethylamines) has ever come close to being as therapeutic and heart-opening as MDMA has been. It has a special place in my life, and I've only done it a couple dozen times, as opposed to the many many hundreds of times I've done LSD.
Therefore, yes, I do believe that MDxx substances are just as insightful as tryptamines. Tryptamines just tend to be more about my place as a spark of consciousness within the entire Universe, whereas MDMA was all about my place as an individual with thoughts, feelings and emotions, and how I inter-relate with everyone else I'm sharing this planet with.
I hope that makes sense.
(disclaimer: the use of pacifiers and glowsticks with MDMA negates any and all insight potential of this drug!

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