Ren

"And having the distance helps them to see more clearly. It
could be another room in the house, outside or at a park, just a walk away
from the group. I do it in my own home around our family and pass that same
respect on when we're out with others."

Same here. I think it's not only respectful of other folks, to remove the distressed child, it's also more respectful of the child so they can continue the melt down in private.
And allowing verbal abuse to take place is not an acceptable form of tantrum in my home. Melt downs happen, but I respect myself too much to allow someone to direct all their rage at me. It is possible, I have to believe, to help an intense person direct their rage in healthier ways.

Ren