Sansha are the most recognized part of it, because Sansha are the ones people see talking under the PYRE name the most.
And there in lies the problem. No one looks deeply enough to see anything but what they assume is there.
People see Sansha show up in channels, being Sansha IC, without any observable change except the PYRE corp ticker. So, they ask for a rationale, and see PYRE making absolutely no moves to respond to the issue except to say 'deal with it' in various ways.
So, they come to the conclusion that PYRE is aware of Nation supporters within their ranks, either does not care or is actively supporting them, and base their reactions off of that.