These are minor details since Boba Fett isn’t a match for Luke. Any real connecting tissue would have to come in two parts - one being the Rebel Alliance and the other being Luke’s sister. The former would have to involve some kind of overall tie back to the real mission; the Battle of Endor. Why is the Alliance letting their top fighters go off to save one man when such a big campaign is being fought? We never find out, and it’s odd. The latter of course would be a bigger re-structure that ties this tease from ESB into the first and third act of the movie. There’s still be a bunch of forest moon antics lodged in the middle but that’s another story.