Still, while you're right that sexist men might see the current Amazons as "typical man-hating feminists," I don't think that they would like this very much. They'd probably say "WHAT? Wonder Woman is from a family of typical man-hating feminists now? Do the feminazis have to ruin everything?"
I think that if some men feel threatened by powerful women, then, if they have to read about powerful women, they'd probably prefer to read about powerful women who are restrained by a moral code and by general niceness and sweetness, not powerful women who might like to castrate them. The latter are probably more threatening.
(ETA--Just to prevent any misunderstanding, I should state the obvious: even if I'm right that sexists wouldn't like the portrayal of Wonder Woman's mother and sisters, obviously they aren't the only ones who don't like it! Obviously the criticisms that have been raised on this forum are not motivated by sexism.)
Also, sexist men might uncomfortably see themselves reflected, even in the first issue, by Apollo, who uses women without regard for their lives, and by Zeus, who, even in his absence, represents everything that's wrong with patriarchy, with all the perverse plans of which the oracles speak And then later, when Wonder Woman makes fools of the brothers who think they can divide the world and leave the scraps to everyone else (aka, the women) and when she refuses to be in a relationship without trust with a guy who wants to treat her like property--well, that can't be something sexists want to read, can it?
But mostly, sexist men would probably look at Chaing's art and say "Where did Wonder Woman's boobs go? We like looking at boobs."