Yeah, two things to add:

1) Even when you move things to a server, or remove it from your device, evidence is still left over without your knowledge sometimes.

2) Evidence of data destruction, is in itself as the name implies, evidence. And it can be used to prove things.

For example, an ext4 journal or NTFS USN $J journal entry that shows "grok_version_2.4_schema.json" where twitter is claiming grok version 2.4 was never deployed in France/UK is important. That's why tools like shred and SDelete rename files before destroying them. But even then, when those tools rename and destroy files, it stands out, it might even be worse because investigators can speculate more. It might corroborate some other piece of evidence (e.g.: sdelete's prefetch entry on windows, or download history from a browser for the same tool), and that might be a more serious charge (obstruction of justice in the US).