Sorry, but the director is a nobody, who has only done a bunch of SNL stuff...has 0 experience with fight choreography, and would therefore be overruled by big name talent aka Hailee.
So if SHE wanted to do her own fight scenes then the show is at the mercy of the A-list talent's wants and desires. Hailee clearly wanted to do it since it's her face we see in all the shots and that's why the fight scene was so atrocious. She's not a trained fighter at all and it clearly shows...but, hey, A for effort, right?
TV shows are also known to run on very tight schedules, so if Hailee wasted the entire day with her sh***y takes, the production is forced to move onto the other scenes. Moreover, I'm sure these chump producers (let's be real, Marvel has only hired a bunch of newbs and rooks to run their D+ shows) didn't wanna bruise Hailee's ego by essentially saying she can't fight for s***, so they accepted the work for the day and moved on.