I wouldn't be surprised if it did get revised anyway, but Justin WAS denying the gods of the state. His whole apology is in the context of being accused of being an "atheist" for denying the official gods.
He's not saying that Jesus is as real as Hercules or Theseus. He's just saying that everything he believes about Jesus is, after all, no different from what the Romans already
believed about Hercules or Theseus. But, of course, in the case of Jesus it's the real thing, while Hercules or Theseus are just made by Satan to confuse the people.
Basically Satan figured out that something like Jesus would happen, so he went in advance and made a lot of false sons of gods as decoys
In fact, that's the funny part. He effectively realizes that his Jesus story is a mashup of standard hero story tropes, but still cames out the other side with the cognitive dissonance resolved to Jesus being the real thing, although the others are just Satan trying to confuse people.