This is why backups are important. But even if the drive is encrypted recovering data is exactly as easy as recovery from a non encrypted drive.
- Do a ddrescue of the drive.
- Re apply the luks header.
- decrypt all non corrupt sectors
- Use appropriate tools to recover files.
Like you lose the same sectors if those sectors are encrypted or not.
I mean if you have an angle grinder and a space to safely use it sure. But it’s still harder than just dropping the HDD off at an e-waste bin.