No, she's expressing how she feels and that she doesn't understand why atheists celebrate the birth of Jesus.
It would be a bit unusual for an atheist to do that, although strictly speaking there's nothing about being an atheist that prevents you from admiring and respecting the example of Jesus if that's how you feel.
I just think that she's fairly firmly out of the loop with how the vast majority of people - Europe-wide, I'd say - see and observe Christmas. What was once a religious festival for everybody now is an entirely secularised public holiday and midwinter festival for the vast majority.
I don't think she's a creationist, but she appears not to understand the concept of evolution in other contexts.