No, Bacuna hasn't ever looked good in CM, he's better at right back and that's where he should play.
Yep, it's annoying, and he isn't showing any movement, he needs to work much harder in order to cause problems for their defence, he is giving them a very easy ride.
Yes, Bacuna has never looked good as a centre midfield player for us, especially in that single game in which he played in the position.