There's nothing wrong with learning to speak and write well. In America reading and writing are actually subjects taught in school. (Yes, Deaf people get education too.) Deaf people are also bombarded with vocal lessons. From an audiological viewpoint there are varying degrees of "hearing loss". A Deaf person who is profoundly Deaf would not benefit from vocal instruction. However, this DOES NOT mean that Deaf people can't read.
Being Deaf has nothing to do with reading. Deaf people can learn to read. Deaf people communicate just as well as hearing people whether they are oral or not.
The view that hearing, speech, and communication are all the same thing and are all necessary components to reading and writing well is at the heart of audism, a form of discrimination. Deaf people are tired of speech being deified. When a Deaf girl is presented as being someone who has overcome a handicap and has become "normal" it tends to set Deaf people off. There is a long history of oppression behind it.
The thing that Deaf people have been trying to tell the hearing world for ages is basically these things:
1) SPEECH HAS NOTHING TO DO WITH READING. Phonics is not necessary to learn to read.
2) DEAF PEOPLE CAN READ. Consequently Deaf people can write as well. An example would be all of the Deaf people here at AllDeaf.com.
Again, there is nothing wrong with aquiring speech. The agenda behind the display is what is wrong. Because 3) DEAF PEOPLE ARE NOT STUPID. This assumption is usually made by the hearing world, not the Deaf world. Deaf people already know they aren't stupid. However they constantly have to deal with these inaccurate portrayals. The "look at the girl who overcame her disability!" approach breeds a lot of misunderstanding and hatred.