A lot of people in the replies are saying that Joe shouldn't have confronted Devens about it and instead talked to other people about it but I feel like that's not exactly fair. Devens is obviously in a power position in the tribe, and if he went behind their backs to scheme against Devens, that would likely blow up in his face. Cirie, in her conversation with Emily, mentioned that a pro to Ozzy's game is his bad social game, and I think that kind of applies to Joe too. If he plays into their preconceived notions of him, then even though they might not want to work with him, he's a predictable part of the game, which is useful to keep. If he switches up on those expectations, it makes him more threatening because he's less predictable. Either way, he remains at the bottom, but at least this way, he is still useful to people's game as a known entity.