Generations came before Lucas "fixed" up the SW movies. The Generations re-use shots really didn't bother me much honestly. What bothered me was how the D got blown up, which was apparently directly related to the limited budget.
In terms of budget tightness ... you got a 12 foot saucer crashing instead of 24 foot saucer crashing. But if you look at the sequence, about half the shots work terrific already ... if you cut the sequence differently, it would work fantastically well with half the effects shots (the good half.)
I think the failing of the sequence lie with letting it go on too long.