That article is a bunch of ignorant tripe. The author is simply making conjectures based on him own uninformed opinions. It his nothing to do with reality.
Trans women ARE women, and always have been when it comes to their gender identity. Ask yourself, is WHO you are in your brain, or in your genitals. If you lose a leg, does a part of your personality disappear. The body is IRRELEVANT when it comes to whether a person sees themselves as male or female. Trans women have no special insight into men, because they AREN'T MEN.
If a man prefers a pre-op Trans woman SPECIFICALLY because she has a penis, then he has an attraction for women with penises. IF a man prefers a pre-op Trans woman SPECIFICALLY because she had surgery to correct her incorrect body, then he has an attraction to women who formerly had penises. At the end of the day, he is still attracted to women. Some women are born with penises. Some are born with missing fingers, or extra fingers, or blind. People can be attracted to all sorts of things... even physical oddities.