I think that i thought it would be a better twist if they did all that and then it ended up that Rumpel didn’t know rather then he did.
And i agree that they should have Rumpel remember, i just think that it would have been much more interesting for them to show him remember on screen. To see that moment. It is what it is though. They made their choice. And the scene where Regina confronts Gold in the jail was a great scene.
Though i don’t think that the power struggle between Rumpel and the Queen is a central element of the show. We don’t even know if there is a power struggle so far.