Those people should watch this video and consider rethinking their celebration of disability.
There are few FReepers here with family members who happened to be Deaf and they've shared stories here on FR that cochlear implants may be effective for many people, it does not cure Deafness in everyone.
Perhaps we are a decade or two away from eliminating Deafness, but that day is not here yet.
In the meantime, leave us in peace.
Imagine how would you feel if you were born Deaf and you were implanted as a young child but the sounds that you hear are so disorientating that you cannot handle wearing the implant for an extended period of time? Many of my Deaf friends do not wear cochlear implants because they hate the sounds they hear while they are wearing the implant.