Because Pakistan didn't recognize that article officially in the first place hence no reaction, havnt you followed parliament debate by all parties on it.
Opposition parties once it was pointed to them they also went mum. Pakistan's stance remains same Kashmir is not a part of India and Kashmiri's need self determination.
Modi has undone any chance it had on acquiring Kashmiri trust, even pacifist Kashmiri local politicians are on house arrest and its a ticking time bomb when they will agitate. This time India won't be able to pin it on cross border infiltration.
Need to stay patient.
https://www.washingtonpost.com/worl...82dc4e-4762-11ea-91ab-ce439aa5c7c1_story.html