use Loader to destroy the victim button, which seems more realistic

main.qml

@@ -14,12 +14,15 @@ Window {
     ColumnLayout {
         anchors.fill: parent
 
-        Button {
-            id: button
+        Loader {
+            id: buttonLoader
             Layout.alignment: Qt.AlignHCenter
-            text: "Greeting to crash"
-            onClicked: {
-                serviceObject.greeting();
+            active: true
+            sourceComponent: Button {
+                text: "Greeting to crash"
+                onClicked: {
+                    serviceObject.greeting();
+                }
             }
         }
 
@@ -36,7 +39,7 @@ Window {
         interval: 5000
         onTriggered: {
             console.log("triggered");
-            button.destroy();
+            buttonLoader.active = false;
         }
     }
 }