You wouldn’t begrudge anyone the chance to enjoy themselves, particularly when the early stages of motherhood can be so challenging, but she’s taking the piss now. It’s like she’s on a mission to prove that nothing has changed for her. Two day sesh? No problem. Christmas Eve & NYE in the pub? No problem.
Whatever about this year when baby is young enough to be contained / held, she’ll be losing the plot next year when it won’t be possible or “cute” (disclaimer: I do not think it’s cute in any way!).