I think the exact same outcome would’ve happened if Wilf had picked Hannah or Aaron to be honest.
If he picked Aaron, then he was already a sitting duck and he would've almost certainly been banished by the group, leaving Wilf as the only traitor and winning.
I don't think Aaron would've done what Kieran did too and threw out cryptic messages and outted Wilf. He didn't seem that type of person/character.
Hopefully they do a 2nd series, however, they'll need to shake it up a bit and change a few things as we all know what can/needs to happen.
For example, we all know there will be at least 2 traitors in the final at any given moment, so in the next series, you'd have to be an idiot if you made the final and you were a faithful and chose to 'end the game' after only finding 1 traitor in the final.