Menachem: Would you agree that both sides of the debate, including those that say the wife goes to her second husband, would agree it is best for the wife to remarry after becoming an almana (regardless if she became an almana young or old)?
I have no idea, but that does make sense.
That’s probably why the poskim were trying to find a hetter to go back to the first husband after תחה”מ, so that she should feel better about getting remarried.