I just mean that X3 does a better job of offering PVE single player content, even excluding fleet stuff. Hell, you can do comma with NPCs to apologize for friendly fire, do passenger missions, fight scary alien races bent on destroying humans, etc. etc. etc.
I will agree with you that X3 has some elements that Elite could use in that regard. Communicating with NPCs (even in the basic choose-your-own-adventure way of X3) would be a very nice touch. Let people pirating NPCs feel like a pirate by making demands, or people who accidentally shot a Fed get them to stand down (though the fine might stand and a second "accident" would have them ignore further requests). All kinds of stuff there.
I loved X3 - before I starting writing the Mossfoot Muckabouts ( https://forums.frontier.co.uk/showthread.php?t=167453&p=2555627#post2555627 ) I had spent a lot of time in X3 and had written a novel for that as well (they actually included it in one of their Gold Box editions, I believe, along with other fiction). So I can definitely say there are elements from the game I'd like to see here.