I don't think she's a human potato, but she is a sour faced scold and an annoying figurehead I don't find particularly convincing about what she says, even if I mostly agree with the general gist of it. What she says sounds like the autistic screeching of a maladjusted teen who thinks she knows a lot more than she does, which is what she is. I don't see why this makes her a particularly effective spokesperson for anything.
And the series of missed deadlines for the imminent end of the world has really exhausted any patience for demanding panicked responses to shit that hasn't happened. The focus should be on what actually has happened and is happening, which is itself pretty bad, instead of on insisting that the absolute worst case scenario is about to happen any minute now, which it very probably isn't.