I don’t feel like her using lightsabers takes away from Luke, any more than Ben using a lightsaber in the cantina takes away from Vader showing up later.
This episode introduced Din to the concept of the Jedi, as well as serving as a warning to what they could be. This is Din getting a glimpse of what could become Grogu’s future. That’s fairly significant. Her reluctance to help and her prowess in battle feed into that insight. It all gives Din a choice of whether this is the path he wants for Grogu or not.
Ben’s use of a lightsaber in the Cantina is a single stroke. It’s an introduction to what a lightsaber can do. It’s a blink and miss it moment.
Ahsoka mowing down an army and then engaging in a duel is completely different. However, her brief attack on Din in the forest is very comparable.
As I said, I have 2 different cuts so I’ll see how they feel as the process progresses.