The true issue is, many women take criticism about their weight too too too to heart.
IOW, if there are 10 guys at the construction site, and only 8 yell out, then she’ll still think she’s a sow.
Even if 10 yell out, she may think “They’re just being nice.” Or “they really mean it as an insult and they’re laughing.”
Perhaps a more formal written survey would be in order