NPC multi crew should have come a long time ago.
Almost as long ago as NPC crew sitting in the empty seats of our ships. [yesnod]
Aaaand the crux of the matter. While somehow pip management has been made the scapegoat for "reason this doesn't work", this is the actual point of issue.
Solo mode quite stringently doesn't instance you with other CMDRs. Because it's solo mode (and jokes above about lawyers being mocked for relying on semantics are almost side-splittingly stupid...does anyone actually know what the law system is? Because last I checked, it has 110% reliance on semantics).
The issue is simply that there's no NPC equivalent of the content you're after, not that you need CMDRs in a non-CMDR mode.
*sigh*
Solo is known as a strategic retreat mode to multiplay in peace.
Oh man, I actually laughed at this. Proper, unstoppable laughter. Thankyou.