This isn't the worst that I have seen.
I've seen people come from a salon with a huge ass "invisible" part that you can stick three fingers through etc....and the clients think they look amazing. So if the customer is happy and WANTS something to look that way then really is she wrong for doing it that way? Lets say that she did give her warning and she didn't care. Now what? Does she not perform the service?
At the end of the day, her client knows good and damn well her hair ain't silky nor that color. Some people, despite their stylists warnings, insist there hair look a certain way any way. She could have very well wanted that color installed but didn't want her hair dyed. That could have been the cheapest hair she could find, etc at the end of the day you dont have to be a stylist to know that your 4b transitioning hair is not going to match barbie doll weave.
With all that being said, I never would have shown this on BHM.
The rest of her work on her instagram doesn't even look like this. You want all images as well as your clients overall look to be reflective of you.