Yin, especially in her line of work, can understand somethings are not meant to be said, and needed to be kept secret. She has plenty of those, herself, despite her inability to care about what she shares and doesn't. It's all tied back to what is beneficial for her team. Most of it.

Yusuke's answer gets a nod from Yin, showing she understands enough, at least the possibility of abilities clashing, and she doesn't need full details for that. She does tilt her head for a moment, almost like she wants to ask more.

As for complaints, she's still not used to thinking of those as acceptable. She's not programmed to express her own discomfort, and most of it is so muted, Yin doesn't feel a need to say anything, either. It is something time might still help with.