Such relatives are the ones you cannot afford to have.
She has just this precious granddaughter; how could she let her marry into a family hiding a ticking time bomb? Precisely because Yao Zibao and Yao Ye are brothers, and if Song Binbin is with Yao Zibao, she would share a household with Shen Jiayin, forming a very close relationship. If her granddaughter were to be implicated due to Shen Jiayin's family issues, there would be no point in blaming anyone, because everyone knows Yao Ye is closest with his brother Yao Zibao.
Aside from Yao Zibao, she doesn't believe there isn't a better young talent in the world than him. It's a shame. She will continue searching with her granddaughter. The urgent matter is to end this relationship quickly and leave with her granddaughter.
