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The hypothesis never postulated a mechanism, and nothing we know about DNA and genetic inheritance

Neither did Darwin. Scientific theory does not have to be all-encompassing in order to be scientific. It does not have to be right either to be scientific.

There are no Lamarkian concepts that "might" be returning.

Do you know the future? Do you think that science will be frozen at the DNA Jurassic Park paradigm from the 1970s (do not grasp at straws, I know that the movie is later)? Inheritance of acquired traits is quite likely to be vindicated in my opinion. (BTW, evolution theory was part of my major)

Obviously the bad part.

Darwin didn't postulate a mechanism for diversity, but he did for natural selection. He assumed genetic inheritance but didn't know about Mendel proving it.

If you say something "might" happen, I assume there is some evidence for it. You have no evidence for lamarkian concepts returning. Does the brain change the DNA code? Are we Telemutagenic? Wow, I didn't know I had super powers.

There were numerous tests done on acquired traits. If you have half of a group of men lift weights with their right arm, and the other half lift weights with their left arm and test the arm strength of the children they have after this experiment; what do you think they would find based upon the experiments that disproved Lamarkian inheritance of acquired traits?