There are often posts here about unfortunate people who have lost hours of work, usually by some kind of file save failure. Experienced people know how to overcome that but even they sometimes make a mistake. I mean, we’re all human, right?
In the Mac world, software like Pages and Numbers introduced a policy of continuous saving a while back. The old system required you to save positively and to keep saving every so often to ensure files are updated. That is the system SU uses. Files that save all changes on the fly do take some getting used to and not everyone likes it, but it would get around many file save failures. Is there a reason software like SU could not adopt such a system if it so chose?