Why not pardon all the other men who were persecuted? Their criminal records should be cleared.
Turing's is largely a symbolic pardon to at least help address this concern to some degree. It's not perfect, but I'll take any steps forward I can get.
P.S. The video in the article is a pretty good / interesting review of all the events surrounding Turing and it's relation to this bill.
However, IIRC there was a lengthy bill passed several years ago that had one item which was to 'symbolically pardon' conscientious objectors during WWII. I imagine this is using that precedent.
I'd imagine there must be some victims who are still alive today.