First, I find oralism and a medical perspectives closed tied to each other.
I find it noticable that once hearing people realize that deaf people can do more than hearing people believed, hearing people automatically will use that new knowledge to expand their medical perspective and what can be done. This is not necessary what deaf people find interesting or important.
Take the golden era of deaf ed, when hearing people learned that deaf people could learn to read and write. Teachers and parents got the idea that deaf wasn't that stupid and could learn to speak better. In other words, the Milan event in 1880.
After the deaf education was degraded thanks to years with a medical perspective, sign language and manual systems(cued speech, see) was brought more into deaf education in the 40s and 50s. Then hearing aids came, and everyone jumped on that medical perspective again. Over time, as the expectations didn't match what people hoped for, ASL was brought back into deaf education. Then we got CI, and hearings flocked once again to the medical perspective.
People claiming this question is an attack on "parental choices" would be happier in countries in Iran, IMO.