Did she pull off the look?
I know zero about fashion, so I'll let you be the judge!
What I do know is the sock/sandal pairing is usually a cringeworthy combo; my dad is pretty much the only one I know who does it with no shame (love you, Dad!).
Here's how Vogue summed up Kendall's choice:
When coupled with gold metallic sandals by Jimmy Choo, her semi-sheer socks in a sleek matte finish provided an unexpected play on shine and matte texture. Given that her dress came covered in a whimsical floral print and boasted a sweeping train trailing behind her, her socks took the preciousness out of the look while lending her summery shoes new life.