This has nothing to do with HEN, but with how the game was released.
There's a reason why the latest patch for God of War takes up 6.8 GB:
https://ps4database.io/view/CUSA07408_00/NP
Anything above 1.01 needs firmware 5.50+, and now they're at 1.23. They probably patched a lot of shit.
The above link is for people who have a 5.53 console, a legit copy of the game, and a kernel exploit to be able to dump the updated game on that firmware, except there isn't a kexploit above 5.05 publicly available.