One of the authors which she endorses is Ken Sande who writes about the phrase "weaker vessel",
- A third possibility is that the passage is warning husbands to be sensitive to the God-given power imbalance in marriage. By God’s design, husbands have greater authority, and wives have less. If a husband misuses his authority, it can frustrate and embitter his wife. If each of these implications is taken into account, this passage serves to warn a godly husband to value his wife highly, to be realistic about her capabilities and limitations, to guard against misusing his authority, and to will treat her with great tenderness, sensitivity, and respect.
It is true that women cannot compete with men in the Olympics, but women have other strengths. Women are different from men, but not weaker in an absolute sense. If women were really so weak, then some men would not have to waste so much bluster indoctrinating women into their own subordination.