If in the process of recovering your data they stumbled onto your financial records and gave them a nice long glance would you not be angry at their perusement of your data?
If my financial records were proof of a felony then sure the techs should report it. What’s wrong with private citizens reporting crimes?
If you have sensitive data it should be kept in an encrypted folder or in offline storage.
If your car is being serviced and the mechanic notices a kilo of cocaine in the trunk should he not report it because he had no business opening your trunk?
I hope this guy rots in jail.