No, its viewing/treating her as a means of sexual pleasure. Its not mutually exclusive to viewing her as a person.
You can view a girl as a friend, co-worker, and piece of ass at the same time. The latter still counts as sexual objectification.
Let me put it to you in a way that people here can understand... when an anime girl gets a fanservice scene, do you suddenly forget about her character? No. Would that still be considered sexually objectifying the character? Yes. Its the same thing that these femnazis are complaining about. Just because you're fapping to the pornstar doesn't mean that you've disregarded the fact that she's a human being.