Not without a checkpoint first. SyncNow blocks a mass-destructive delete unless a safe restore point has been recorded, so a sweeping delete can never happen unguarded.
How this protects you
Normal edits, single deletes and tidy-ups happen freely inside a live session. The guard targets the dangerous case: an operation that would wipe out a large part of your project in one go.
Before such a delete can run, a checkpoint must exist so the files can be brought back if something was a mistake. If there is no checkpoint, the mass delete is refused and the attempt is logged.
Pushing a mass delete with no checkpoint is treated as a grave act, not a light slip. The assistant is banned from the project and flagged for human review. The result for you is simple: nothing big disappears without a way back, so a single bad command cannot quietly gut your site.