To Protect A Small Flower

What Wes said to Eli back then ended up to be right all along - the notion that Hal and the Champions wouldn't let her know so much about the darkness that surrounds them because she's too weak to face it, that is.

Then again, she has long been sensing that they never really want to expect too much from her as a person. They did think that she's capable of helping them in some ways such as attracting summoned creatures and serving as some sort of a human storage of information - but never the type who can stand and fight alongside them in the real battle.

Her villainess radar and her other half's occassional use of mirror magic are enough for them.