I just hit printscreen and save, I think you may be confusing your familiarity with a system with user friendliness.
For comparison, MacOS doesn't have a printscreen key, it's command-shift-3 or command-shift-4. Much more confusing to newcomers in my experience.
Spectacle used to just let you automatically save with no confirmation dialog, then they changed that a year or so ago. Maybe it's still possible to configure it but I was less than happy to have my default changed.