So, without reading the rest of the thread to avoid any spoilers that I can at this point, I watched the LATimes interview from TIFF where Aguilera and Rhodes were with Olivia Munn.
It's clear that they wanted to celebrate/talk up the movie, story and cast when press is just kicking off, and were not prepared for the whole situation. Any of that would have been moot when Olivia is (rightfully) dismissing Shane Black. There was nowhere else to go. They looked visibly let down by the way things turned out.
In order to really focus on the positives of making the movie, there hasn't been exactly the widespread supportive response you'd want from everybody, sure. But she's definitely trying to. Munn is already basically torn from association with Black, as evidenced in her comments, and Black is a moron in every way, as well as Fox to a major extent.
However, I don't think all of the outrage online directed to the entire cast is fair, unless one of them explicitly cancelled an appearance they were supposed to do with Olivia. Which, I don't think there's any evidence of.
