No. Been doing parties for 10 years. The passes have never been usable during parties. But honestly the lines are very do-able for the most part. With the limited number of guests and many doing Character Meets, special shows, trick or treat and parades it reduces the lines considerably.
Note that you can get in the MK with the Party ticket at 4 pm and you can use the
DAS during those 3 hours from 4-7. And it gives you 3 more hours in the parks.
And I think CM misspoke, it is 60 days depending on your ticket.
From Disney -
"DAS is good for up to 60 days, based on ticket entitlement.* Once the service has elapsed, it is no longer valid and you will need to return to Guest Relations. *Annual Passholders can obtain DAS for up to 60 days."
Also from Disney -
https://wdpromedia.disney.go.com/me.../wdw-disability-access-service_2015-04-30.pdf