Note, that fathers now have similar rights. There are some exceptions right around the birth, because that clearly affects women an men differently. I might also miss some differences.
But the current legislation allows both my partner and me to take out equal amounts of time (about 7 month) in the coming year (we can split 14 months, as long as they each takes at least 2 and they can overlap) with 66% compensation replacement from the state.
So the employer cannot rely anymore on a man not taking time off.
(The total amount without is about three years instead of 14 months, but only those 14 months are covered financially).
The difference is that a woman has to take time off (for health reasons), whereas the man can take time off. Economically, there is a penalty for taking time off (lower salary, lower skills, lower future earnings), its economically rational to not take time off. But only a man can make that choice.
So the employer cannot rely anymore on a man not taking time off.
(The total amount without is about three years instead of 14 months, but only those 14 months are covered financially).