And, in this argument, I think we reveal a major point...
Whether a mechanic is "dissociated" is really not the important bit. Whether a mechanic is dissasociative - whether it causes dissociation in the player, a breaking from the in-game experience, is. However, that is an entirely subjective thing. We could discuss tendencies, but none of us have actually asked enough players to really have data on that.
I will grant that Fate Points are a dissociated mechanic in the standard parlance as I know it. However, they don't break me from the in-game experience, so I don't have an issue with them.