Final answer:
Jordan's paraphrase omits the important detail that the ERA would equalize survivorship benefits between genders, which was a significant change from the previous gender-specific benefits.
Step-by-step explanation:
The paraphrasing mistake Jordan made was that he left out an important detail. The original sentence specifies that survivorship benefits would be made available to husbands of female workers on the same basis as to wives of male workers, which highlights the equality of treatment based on gender. Jordan's paraphrase simplifies this to say that benefits would be available regardless of sex, but it does not convey the significance of equalizing benefits that had previously been gender-specific.