Bruv this is all waffle.If we look at the hadith (shown below), which is included in that link that you referenced, and then try to digest it, we can get several things that have relevance here: 1) Age of Jaabir ibn ‘Abd-Allaah (ra); 2) age of his sisters; 3) age of the previously married woman; 4) virgin woman; 5) the concern that Jaabir ibn ‘Abd-Allaah (ra) that he had for his sisters;
On the first point, the Prophet (ra) asked him why didn't he marry a virgin. In my view, Jaabir ibn ‘Abd-Allaah (ra) may have been a younger man, and the Prophet (scw) was recommending him to marry a younger woman. The virgin here could be understood as someone who is much younger.
On the second point, Jaabir ibn ‘Abd-Allaah (ra) wanted a wifey who is very mature (#3) that can provide guidance to his sisters. This is where the age and maturity of the woman that he was marrying was very relevant. It also explains that the virgin referenced (#4) here is about age because if a Muslima never married but an older age, she is still a virgin. So why then the sahabi Jaabir ibn ‘Abd-Allaah (ra) wouldn't go for an older woman who has never been married? She is a virgin if we take it the way you see it, so why didn't he go for it? Due to her age, experience, and knowledge in the deen, she could've raised those girls while she was a virgin, so why didn't he go for a woman who fits in all of that if the intention is to find a woman who is never been married?
This is where we need to understand that the virgin referenced here isn't about a woman who has never married before only and of course didn't have an intercourse; the virgin here is a young girl. And it does indicate to me Jaabir ibn ‘Abd-Allaah (ra) was a younger man who needed a mature woman who could provide guidance and take care of his sisters. In other words, he needed a much older woman than a younger man - who is being recorded the hadith as "virgin".
Third, the Prophet (scw) told him “You did the right thing" by marrying a mature woman who can provide a motherly figure to his sisters here. Again, age and maturity does have a relevance here. The Prophet (scw) also make dua for Jaabir ibn ‘Abd-Allaah (ra): "He said, 'May Allaah bless you,' or he said good words to me. "
Finally, the Prophet (scw) also stated "For women may be married for their religious commitment, their wealth or their beauty. Choose the one who is religiously committed, may your hands be rubbed with dust (i.e., may you prosper).” At the end, women's eman and her religious commitment has far greater importance than her being virgin, divorced, or widowed. There that your "mustahab for virginity" is overtaken by the woman's eman and piousness.
Age doesnt matter, its about a woman being already experienced in her marriage making her more suited to manage 9 of his sisters.
If you ask any scholar they will tell you it is prefered to marry a virgin woman.
The Prophet of Allah Sallallahu Alahi Wasalam said; “You should marry virgin ladies as they are sweet in speech and bearer of more children and they feel contented with a little
Ibn Maajah in his Sunan. Al-Albaani: Hasan