...cruising Safari's menu items reveals that every command that incorporates ⇧ also includes a letter that's displayed as u.c. despite the fact that the command's intention is l.c.
Have you ever seen a menu command that includes a letter which is
not displayed as upper case?
That's a very good point. If the menu command displayed a lower case letter, like "⇧f" you can bet that people looking at their keyboard would say there is no "f", I only see "F".
This is similar to the instruction: "Push any key. Where's the 'Any' key?"
