Fencing with a rapier is different from waving around something which cuts and burns through stuff without pressure with every side

It’s actually closer to what Lightsaber dueling would be than the Kendo style used in most of Star Wars. The Light Saber has no mass and a single touch is incapacitating. So two handed hard chops like classic Luke are ridiculous. The rapier fencing technique to parry, thrust or slice quickly and lightly is ideal. You have a massless blade not a two handed clamore. You need only prick the opponent to severely harm them in the same way in fencing a touch, no matter how light, is a point for you.