In Europe, the employer is running a social program, not a business. It forces them to be ruthless when opportunity knocks.
I know of a fool at an engineering company that lost his employer a million on a project that should have turned an easy profit, and they couldn't fire him. This being one of a mountain of examples I've accumulated in 25-years dealing with the Euros; the examples of idiocy are truly endless.
What we don't know is the history of this situation. She could have been a lazy employee or one that had cocked up the works frequently and they saw this as a way to get rid of her.