Stories like this are nonsense. It is over. Trump is the nominee. There is no deus ex machina that is going to snatch the nomination from Trump
By all means, put your fingers in your ears, shake your head, and pretend they are not trying. Look at the delegates on the rules committee, Research them, and then come back and say the same thing.
Unless you are one of the 16 on the committee; you have no idea what they may or may not try.