I don't have an answer for you, but I can share my experience. Remember the poem/story about going to Holland rather than Italy? Before my DD9 was diagnosed with significant hearing loss, I planned on "going to Italy" with her. I felt bad for all those who went to Holland instead, because Italy was so nice. Well, at least I thought it was, after all I had been there with my 3 older children, so to speak. But then I went to Holland (my DD was diagnosed)....and you know what? It's okay!
I guess my tendency before she was diagnosed would have been to say sorry, too, as if you should be/are disappointed. But, I am not disappointed. Disappointed is the wrong word. I guess I grieve for Italy, but Holland is okay, too! Maybe it takes a trip to Holland to understand that it is different than Italy, but it is still a great place! My DD has hearing loss- but it is just one part of her. She is so much more.... I no longer say I am sorry when a parent shares their child's disABILITY with me, I just smile. Maybe because it's because some us know the secret about Holland! And aren't the flowers especially beautiful!