Yet Sara and Ava were ultimately glad that Zari did it, because when Ava and the Time Bureau teamed up with the Legends to take down Mallus, Ava specifically recruited the Themiscyra-trained Helen as one of their reinforcements -- and Helen kicked ass and took names. So yeah, I think that Sara and Ava both in hindsight not only understood why Zari did what they did, but they were also glad that she did.
And I meant that Charlie and Mona WOULD have bent the rules the same as Zari did if they'd been around because they'd have been immediately sympathetic to Helen, especially Charlie, who knows what it's like to be condemned to an undeserved fate. And if Nora had been back then who she is now, she'd have done it, too, and for similar reasons. She knows what it is to have no control over your own destiny because she had no control over hers for the longest time.