Certain types of notification not sent

[Eadinator]

Flux version: 0.10.0
Provider: googlechat

Notifications for resources marked for deletion/deleted are sent to Google chat.
Notifications for resources created and health check notifications (as in https://toolkit.fluxcd.io/_files/slack-info-alert.png) are logged as dispatched by notification-controller but do not get sent to Google chat.

I think after a look at the code, this is because these events are incorrectly sent as "Progressing" events by kustomize-controller, and the notifier in notification-controller skips these events.

I think that events logged as dispatched by the notification-controller but which are black-holed by the notifier can be misleading, because they are not dispatched to the provider which it could be interpreted as.

[somtochiama]

Taking a look at this issue.