I am also a person with a disability from birth, as it happens a rather rare genetic disorder that probably because of it's rarity would not be screened for in the same way that say downs is.
In the past I have been sceptical about grand claims of "trying to weed out disability", disability per say will always be with us as long as humans engage in war, take charge of any form of motorised transport, engage in unsafe sports or hobbies, and continue to be at the whim of chance and are the subjects of accidents. Disabled people will always be around and as such will always find themselves disadvantaged and marginalised.
The other contradiction is the issue of making the principle of the woman's right to choose the most paramount issue which it always should be.
However I agree entirely with the article that the issue is how the idea of disability being even more distanced from part of normal society is the issue. People with impairments have and still continue to add huge amounts to all levels of our society. Would science be as commonly spoken about with out Stephen Hawkins? Or would the world of music be as good without Evelyn Glennie. The scottish enlightenment in particular had a high number of people with physical and mental health issues. My point is that when women come to make the choice, I think it is going to be on the basis that disability is wrong and can be "fixed"
I do then think that a huge dollop of eugenics is involved here, how long will it be till we start to hear the arguments that it is more cost effective to offer this treatment, than it is to support the individual through out their life. I would like to see all those offered this treatment spend a day in a school or a group home to see how disabled children have a life every bit as valuable and important as others.