It's just odd to me when I see people (not necessarily you!) saying both A. #7 was a shocking blow to the legacy of Wonder Woman--the Amazons have been the one constant in Wonder Woman's story for 70 years and now they're gone!, and B. this story is just like many other stories that have already been told about Wonder Woman and her Amazon family. To me, those two premises don't quite go together. While it may be trite in your eyes, I think there must have been something original or surprising, for good or bad, about it in order for it to spark so much discussion. But though for folks who don't like the book, I understand the desire to hit it with every argument they've got.
But this is not a story about man-hating baby-trading Amazons; they're in the background, not the foreground. It's a story about how Wonder Woman, this idealistic and caring hero, discovers that she came from that brutal background, and also from the inhuman and often-cruel gods. Of course when you're doing a story in a mythological world you're probably going to use public domain elements. In a comic about an iconic comic character against a mythological backdrop, it's how you combine and reconfigure and add to these elements that can make your story relatively "fresh."man-hating, one-note fighters. It's so generic, and public domain, I could make a movie tomorrow about man-hating baby-trading Amazons and DC couldn't stop me.
First, as Wonder Woman enters the "atonement" and "return" phase of her journey, we have to get their side of the story. Were they manipulated at all? Is there anything to mitigate their guilt? For example, suppose the first Amazons were all rescued from male violence by Aphrodite, given Paradise Island and made immortal, and charmed by her and taught by her and isolated from all other cultural influences; they might think that that serving her "divine will" was always right. People have become religious zealots with a lot less reason that than. And/or suppose that she drives them mad with lust three times a century, like the Vulcan Pon Far in Star Trek. And/or suppose that they don't personally kill the men by their own hands (for we don't actually see them do it, and Heph doesn't explicitly say they do it) but the men's "lives [are] drained from them" by Aphrodite at the conclusion of the sex rite. And/or suppose that their sons would be doomed, beyond the Amazons control, if they stayed on Paradise Island. Heph and the boys may believe that the Amazons didn't care about them and would have drowned them--but that may turn out not to have been true from the Amazons' perspective. I don't know--I'm just saying we don't know their side of the story yet, and before we can know how they can be redeemed, we have to hear that side. I guess what I'd LIKE to see is some mitigation, but not total mitigation (i.e., absolute mind control); there should be some moral complexity and some real responsibility.Moving on, how would you redeem them? Can murderers and baby-sellers be "redeemed"? Do you think the comic audience at large would accept them as good guys later? What would you have them do (one of the biggest problems, imo - good or bad, just sitting around the island isn't all that exciting for long)?
Than, as I've said, I'd like to see them share the island with their sons/brothers, learn from them (and teach them) and start building an exemplary society on a basis of gender equality. And they should realize, with Wonder Woman's guidance, the wrong they have done. And then, some kind of heroic sacrifice or attempted sacrifice will probably be in order. Maybe they could defend their brothers and the world in the midst of the Trinity War, whatever that turns out to be. But no, I don't mean that they should all die and Wonder Woman should be the last Amazon again.
By the way, as far as keeping them busy, I suspect we'll find out that they've been doing something "heroic" all along--since they apparently have needed to regenerate their ranks despite their immortality, they've probably be fighting something and suffering casualties. And Diana in JL's first arc already seemed to know a lot about fighting monsters (how to kill harpies and such). Maybe Paradise Island is still a hellmouth, though you'd think that might have come up by now, with hell being at hand. We'll see.