DAS is available during these events. The timeframe between "park closing" and "party starting" it does not work on the
MDE, you have to get it in person at attraction, but as soon as the party or event starts it works again on the MDE.
2022 I arrived to do a party with no park ticket for that day. We got our DAS in person and she explained how it would work (above) and it worked exactly as explained. I even tested the in between time frame.
The difference NOW is that
everyone must do it online and we don't know yet if having just a party ticket will qualify for a DAS with the new system. We should know a month out of the parties starting.