I would not mind protected as long as you have lifetime replacement of the USB, talking from experience you don't pay for the media but the styles and sounds that were created, the protection, which preoct from piracy does not benefit the buyer once the media goes bad,then you can throw away in the garbage which I have already done.
As far as I am aware all keyboards allow you to back up everything, (Just as you would with any computer) so there should not be any reason to loose anything.
As with all things software (Hardware arrangers have there own embedded software) Backup, Backup, Backup, with NO exceptions (If your worried about it falling into the wrong hands then encrypt it)
Bill