When Helen Keller was asked which of her three senses she would choose to have she said hearing.
Finger spelling can be done in the palm of the hand as Annie Sullivan did for Miss Keller.
I have a 50% hearing loss and, believe me, I dread any threat to the hearing I have left. ... no music? ... not to hear my children's voices? ... the voices of friends? ... You can write stuff out, or type on a computer some computers even have "voices" ... I'm leaving now before this turns into a rant ...
OK, what are silent verbals?