I was disappointed that Qimir was the master. It was the obvious choice which made me think it wouldn't be him. But I gave the writers too much credit. Still, that actor did a fantastic job. He's been the high point of the series.
I don't have issue with the Padawan going toe to toe with the master. There are established cases of Padawans being exceptionally gifted. Ahsoka is a good parallel. Also, the Padawan was dual wielding for most of the fight. Something that made Jedi much more dangerous but was discouraged as being too aggressive.
I hate they killed her off. I liked her character.
The twin switch trope is cringe worthy. You're not fooling a Jedi master who knows Osha very, very well. Also, you're not cutting your hair with a lightsaber and it looking anything like what you're going for.