I know everyone has their own way of dealing with things like this.
My mom was severely ill and nearly died a couple of times in the hospital years ago- once was a med mix up . She did recover and her illness went into remission- but left a few problems behind with her.

I was pretty dumb - had a baby and 3 little boys at the time so i was in a fog it seems like now looking back on it.
- plus back then I trusted that drs knew what they were doing and of course I trusted that mom would be just fine.

one of my brothers was a rock he seemed so calm & cool about everything
one brother is in business so he was all about the details
sometimes my dad and I would just look at each other and tear up- we are so alike that way
2 of the family lived 3 hrs away

mom had an immune system illness so no grand kids allowed- due to germs and such

so I guess I'm trying to say try not to stress over the family members that aren't able to deal with the medical facts- maybe they just can't handle it yet- maybe later they will.
sometimes being in La La land is the only way some can cope