Imagine if IRyS just refused to talk to the guy and only interacted through Kiara relaying messages as a middle(wo)man. It'd be such a gigantic b*tchy move, and that's exactly what Kanata was acting like. Honestly it ticks me off way more than it should.
I'm sure she had already made up some excuse long ago to say, 'oh, everyone's idea of an idol is different, so this is just how I am an idol, blah blah', but honestly, why doesn't she just go and say, "Oh, I don't think Sora is an idol, because she talks to males. I don't think Suisei is an idol, because she talks to males, etc."? That's what your actions say, but you're too pussy to say it to your colleagues?
But if you think you have to not talk to males in order to be an idol while other people can talk to males and still be idols, then you're just going into post-modernist, "This is MY truth, and that is YOUR truth and both of our truths, though contradictory, are equally valid." I hate that junk too, so she ticks me off no matter what her stupid excuse is.