Other schools use different names but almost all of them have those types of things. It’s not like they replace the actual commencement, they are just supplemental gatherings that take place during commencement week. Notre Dame has them, too. Usually anyone can attend if they want to.
The stuff you found on Notre Dame’s website sounds a lot like Title IX compliance (reporting channels, training, etc.). Not saying that’s good or bad but nothing out of line with almost any other university.
You absolutely should email Erin Oliver and ask her about the office’s mission. I bet you’d get a thoughtful response.