People at our company would likely still be on parental leave so it wouldn’t be necessary to be explicit.

It would also be perfectly clear from context (and probably overt comments as well) that attending is not only not expected but would be looked down upon.

We repeatedly celebrate employees prioritizing their families over their work, and we make every effort to avoid taking on projects or commitments like 24/7 support that might threaten that. In short, we plan the company around our lives, not the other way around.

Of course, the counterpoint here is that people still need to add value and get things done. So we also very much celebrate shipping and moving the ball forward each week.