When doing research, and you come across someone you don’t like, do you try and hide that from them? In my books, writing nasty things in your field notes about a person, but not confronting them directly with your feelings is unethical. Honesty in this sense is about respect to each other. You can’t go pretending to be something you’re not, and hiding your feelings and position/stance is a form of deception.
Yes/No? Too simple? Yes much too simple.
But then it’s okay to deceive to some degree.