Mainly because it shows the clear difference between the two, and how Maul was always going to win. After a quick exchange of sabers at the beginning, Vizsla realized he couldn’t take Maul in a straight up duel, so he used every underhanded trick in his arsenal to win. His jetpack, blasters, flamethrower, razor blades, etc. Meanwhile Maul was surprisingly very composed in this duel because he wasn’t just fighting to kill his opponent, but earn the respect of his men. To that end, he NEVER used the force a single time and instead used his wits and quick thinking to counter Vizsla’s gadgets.