Well until there's some scaling for BS, it is just basic
The overwhelming others scans, there's nothing beyond what Arima and the most powerful ghouls cause to others around. The fear and paralysis scans, Muichiro and Tanjiro calm themselves and are fine right after. I just don't know what that would be other than supernatural willpower or literally just calming themselves down. Same with the breathing stuff, it's a physical pressure that's induced from their BS, we see the same with Kokushibou and Yorichii, Kaneki can't be affected by a pressure only seen affecting Class 50 characters. Same with the others, all that is pain inducing or dura neg, something Kaneki is used to.
- Supernatural Willpower (Being exhausted, he continues to fight against the enemy with the apparent God of Death. He continues to fight even after his body has been pierced, and his eye and brain have been pierced through)
I'm actually gonna make an update for Arima's aura since it's really apparent but shouldn't have too much of a change with this.