No, back up your data to a service independent of the service hosting what you're backing up.
It reminds me of "I use box/iCloud/some-other-cloud-drive-service so don't need backups", but don't understand the model is "I deleted/broke the data on my machine, and then synced that data loss to every machine"
Lesson learned: back your GCP data up to a real cloud like Azure or AWS.