Whats happened with this issues more reflects a change in strategy by the GOPe than it does anything else. They now see Rubio as their last best chance and are trying to boost him into second place. Once that happens, you see the other establishment stooges drop out with their support presumably going to the GOPe's candidate.
Which is the other straw the GOPe bloggers cling to: “Well, if you add up Rubio, Yeb, Christie, Kashich, Fiorina, and Paul, they equal Trump.”
That is what we all fear.