Yes, I'm just reinforcing this because the reason it can corrupt while data is being saved is because the info that's being written into the system/storage device doesn't get written correctly, thus, creating a corrupt save file that can't be read by the system.
There's no reason to believe that closing a game without saving can corrupt data, especially because years and years of gaming can be used as an example that the only thing that's certain to happen is for you to lose your progress since you didn't save it.