Other mistake: When Phoebe gets the premonition to see all the loss, she sees the scene where Piper dies in All Hell Breaks Loose. Since time was rewound this event never happened in this timeline, and we're never given any reason to believe Phoebe would know this happened after the time reversal.
Other mistake: In the kitchen scene, Phoebe adds a mix to a pie crust but puts an empty crust in the oven. (00:04:10)