1. Blackbeard is an exception
2. Greenbull is also an exception since unlike other logias his body is also phyacial naturally so he has to phyaciallt create a new body when his previous one was damaged. To add this ability seems to also be attributed to his ability to absorb nutrients from others.
So comparing a dude having his whole body burnt screaming in pain and then being forced to create an entirely new body is vastly different from a body being completely unfazed by an attack period