Why does hiding objects in world outliner NOT turn off their collision?

When you turn actors off in the world outliner, their collision stays on.

This completely stuffs up my ability to sculpt the terrain under the objects.

If I drill down 10km into each objects properties I could disable their collision, but what if I already had 100 actors laid out in the garden? What if they all had different collision settings for some reason?

I can’t think of a good reason why this would work this way, I can only think of bad ones. I want to say mean things about the person who designed this functionality but I’ll bite my lip in case there’s some sophisticated reason why this is done this way?

Is there? Because I can’t think what it would be.

One slightly disgruntled ioflow