The game is good, but sudden game over with full progress reset is too cruel. especially without explanation how to avoid game over.
If something can cause softlock it doesn't mean it should lead to full game reset. In this case dev could either prevent player from deleting important file or change the punish into 5-15 minutes progress reset. The game wasn't established as "super hardcore game where you should be very careful for every action", it just incremental, it has no reason to have a such cruel punishment.