Still waiting for evidence, but I don't like what we have so far, to be honest. Yeah, it does sound like what someone beating around the bush would say if they assumed the person asking wanted that to happen, but it's still not only missing a no, but leaving the possibility of a yes open.
Just searched for a random clip of someone else talking about this and got this one:
https://www.youtube.com/watch?v=dajiv4XqOIUShe beats around the bush, praises them, wonders if her initial reaction towards them was too cold and everything, but still puts her foot down and says no, she says she doesn't feel comfortable with it, and that's it, end of story. And you instantly see people in chat reassuring her that her initial cold reaction was fine before she got to the point where she still gave the "no".
If you just don't mind her collabing with men, that's one thing, but if you do mind and just don't want to hurt her feelings by expressing your thoughts as a fan, you're just a spineless faggot. Wouldn't hurt to get a few playful ダメs in chat when she brought it up, for example.