Putting myself in that position, What if... :
A lot depends on personal perspective... how much of a close-call i thought i'd been through.
But when curosity about what i'd missed, surpased the dwindling heeby-jebbies,
I would Absolutly, Defenitly NOT want to see it with the same audience / other survivors.
As "group therapy" that sucks.
Their anxiety / trauma would feed off each other and amplify.
Hell No.
For me, a re-viewing would need to be anonymous - alone in a dark theater.. (a few unknowing strangers would be ok)