No, it doesn't.
It said Mihawk's sword skills as superior to Shanks, which could be true. Sword skill isn't just or predominantly Haki. It's styles and technique first. That includes shit like using multiple swords and setting swords on fire or using rose petals, etc.
Mihawk could have absurd technique and still be weaker than Shanks because the latter has superior Haki, and likely a DF sword if Shamrock is any indication.
If Haki isn't taken into account, Sanji fucking crushes him. Physically they are not close at all due to Germa awakening. Even prior, Sanji had better physical feats.