Responses
Now THIS I one hundred percent agree with! I feel it would ruin the story if he showed his powers completely. But Asslo needs to be taken down a peg. And you're right that may be why John was holding back because he thought he was a monster. No longer holding back at least partially makes sense then.
Before I was like "Nah, don't show your powers!" but now I'm more "Use them and use them well!"
I think John's inner monologue did it for me to change my view. He realised that not he was the monster but all the one's attacking him.
Even if I too think he's playing in Arlo's hands with using his powers I hope he will be able to control them. And I also hope that he won't use *all* of it like showing only a part of what he can do (still firmly believe that his powers are above god-tier)
Hopefully Sera will come and end this all before it gets out of hand. (or someone else, else i fear for Arlo and the other's health)