The way auto-reference cards work, the general effigy upgrade would have to add all seven Emissary cards, so that's not feasible at the moment.
I thought I fixed the text box at some point but I see that too, I'll look again for the next update.
Not sure about the advanced crews option - I'll add that as a feature but it would probably be more time consuming than Wyrd would want me to do for something that has another, albeit less ideal solution.
I've proposed links to FAQ and Errata before and they said it wasn't necessary, but I'll make a note of it.
I think we talked about a stats page at some point too, but again it might be more than they want to do atm. I'll put it on the feature request list though.