Harry is playing a good game but with so few people left he needs to be careful. He’s been a key voice at the table every time they’ve got a traitor and yet he’s not been murdered. Jaz clocked Harry had given Paul the info that if Jaz is murdered then look at Paul, and the only reason he hasn’t yet been murdered because it would have led back to Paul… he just needs to think back over it.
Harry confidently said in two separate conversations that Miles and Paul were two Traitors going against each other, stirring up suspicion, and was right on the money. He said it without fear that if it was true, the remaining one from that round table would bump him off that night.
If he doesn’t get a shield, his continued failure to be murdered and skill at picking off Traitors might be noticed.
I say all of this like the Faithfuls have half a brain between them