I don't see why this is a problem, technically. Although he came on at the wrong time, if you're trying to come back from a deficit, you probably want more attackers on the field. He wasn't playing a second rower's game - just floating in the middle.
Playing Lui at 7 and Moltzen at 1 make sense.
Moltzen can rove around and play 7 or 6 when the time is right.
Hodgeson was doing it years a go and it worked a treat.
Slater does it, Carney will do it
We have the likes of fugging benji Farah Lawrence and Moltzen in the side. I hardly see what sh*tzhenry is going to add. And defencivly we could have had some issues if Manly saw some more ball.
Lui didnt do anything bad, nor did he do anything good either. Didnt really notice him apart from a couple of kicks