Sorry, but there's been goofy swordplay going on since ESB when Luke first did his little spin move.
Go to 1:10 or so in this video to see what I'm talking about.
When Luke spins like that, why not just stab him in the back?
And the prequels...my God...the prequels... Spins and twirls and flips and more twirls and more spins, mid-air cartwheels, etc., etc., etc.
None of it makes a lick of sense from a sword-fighting perspective. As I recall, their stunt coordinator incorporated a variety of techniques, including tennis and axe throwing. Hell, Qui-Gon basically plays racquetball with blaster bolts in the first film.
The only sword duel that made any sense was the one that was the least visually impressive: Obi-Wan and Vader in ANH. They keep their footwork contained, they keep their centers of gravity mostly above their feet, they rarely get off balance or overextend, and it's all an economy of movement waiting for an opening. One which doesn't come until Obi-Wan lets himself get killed.
Every duel since then has been entirely focused on cinematics and visual pizazz rather than good sword-fighting technique. At this point, it's just part of the franchise as a whole, so nitpicking about this or that individual character's bad sword-fighting skills seems like just an excuse to complain about the character on what has become a non-issue in the films.