No pissing match intended, but in this I see simply an exact repetition of Ellison's position, which I've always found rather petty (to put it mildly) and reductive. Edith is never "Hitler's enabler" in the final episode, but she is naively focused on pacifism only, which indirectly changes history.
You're an artist, Harlan, yes, but in this case you work for a TV show that has its own rules. That includes the Roddenberry philosophy - it was his show after all. So Edith's speech may be corny, but it's 100% GR and thus 100% Star Trek. Elliison by contrast included an element with the drug and murder stuff (I don't remember if the execution angle was still in his draft script or whether that was thankfully excised even earlier) that is 100% not within that philosophy. The elimination of the 'pirate' Enterprise also contributes to tighten and focus the story. So it's debatable which version was the one with the 'deficits'. Me, I would argue, that Ellison's was the flawed one. But sure, one can disagree on that.