Marraige and Bnos Tzlofchod

Bava Basra 119b. The gemara tells us that  all 5 daughters of Tzlofchod had many positive attributes, but still none got married younger than 40 years old. They each married hagunim. The gemara continues that because they were righteous women, despite their ages upon marraige, they still had children.

I was discussing this with someone and he suggested that apparently even in the midbar, there was a Shidduch Crisis. I instead suggested that the gemara has a different take. Despite their great attributes, they were undesirable for marraige as daughters of Tzlofchod, a person who was executed for chilul Shabbos. Then they were awarded 4 portions in Eretz Yisroel (per the gemara in Bava Basra). Now suddenly they were wealthy and had many suitors who may have overlooked their family situation. Thus, the gemara informs us that they still insisted on marrying hagunim and not acting on the newfound attention that the wealth brought from prospective suitors.