They let her linger for days suffering. Instead of medical attention they got on the phone with their leader David Eells, and he prayed with them and apparently did not advise them to seek medical help. They chose his advice. She slipped into a coma finally and they called relatives and let them know she had, and STILL they are not the one's who called 911.
Do you mean that you believe in hell and that they are headed there, and so who cares if they are free to do this again in the meantime?
Or do you mean that their punishment is the amount that they now feel bad about for the deliberate decisions they made while they never reached for the phone and watched her die instead? I don't think you mean this second option because their version of feeling bad about something and your version of feeling bad about something is likely 2 very different versions.