I think it's unfair to say she contributed nothing towards Isolation. She made the entire premise of that narrative work and the emotional pay-off when she hear's Ripley's message...amazing.
Now I'm not saying the gameplay wouldn't work otherwise. It would. But there's plenty of people shouting for Isolation 2 and they're often talking about finishing off Amanda's story. So, no, I wouldn't say they're misinterpreting. As much as I've enjoyed Blackout, they are missing the mark in that it is Isolation 2 they want to experience that story in.