I might suggest changing this to:

````java 
if (wcfg.<clever name for a config option> || wcfg.explosionFlagCancellation) {
    if (wcfg.explosionFlagCancellation) {
        event.setCancelled(true);
    } else {
        event.blockList().clear();
    }
    break;
}
````

@wizjany & @sk89q, opinions?