True. But ...
... a woman can be athletic and powerful looking without being thick. Wonder Woman has been rendered in the comics as a powerhouse but very well proportioned. I have a friend who's insanely fit (she's a pole dancer) but remains graceful and elegant while having incredible muscle definition and obvious power. She's not that much thicker than Gadot but could snap her like a twig.
You'd have to be dead not to find Gadot stunning and a joy to witness ... but in spite of executing the role well she really doesn't quite look the part as well as someone could. It's a balance thing, though -- I'm sure there are plenty of women who look right but don't have the onscreen charisma she does.