Before anything goes to Congress that supposedly has John McCain's name on it, I think it is completely normal and within the bounds of normal protocol to be able to see and talk with him first.
There is no way to know if McCain is actually doing any of this stuff. It could be coming from his daughter, or his staff, who knows? Congress should not vote on anything while being blind. Either McCain comes out of hiding and verifies that this is his bill, or voting is postponed until he does.
The actual McCain could be in a coma or dead. We just simply do not know.