Because as far as I'm concerned, one of the stupidest recons of the New 52 was the bright idea to take away Victor's most redeeming and tragic quality - the desire to cure his stricken wife Nora at any cost, who drives him into the role of super criminal - and make her some random 40's girl he thinks is his wife, effectively turning him into insane generic super villain again at the expense of everything Bruce Timm and TAS made his character engaging with. And which has been ignored by every other incarnation of Freeze done since, including Gotham and the Arkham series.
Freeze should be a tragic story of love leading to destructive change and amoral choices, and that decision to take all of that away from him has always annoyed me. Rebirth probably gives the perfect opportunity to undo that and make Nora his actual wife again. Does anyone else feel the same way?