Most of these guys are just capitalizing on the inability of the public (and more importantly, the guys who fund this research) to understand what they are doing, and what it proves or doesn't prove. They do an experiment, make grandiose claims, and no one challenges their conclusions. Since it's all academic anyway at this point, no one has any incentive to challenge it.
I'll agree that there is a mystery, but it's largely a mystery that they all have a financial and academic interest in perpetuating, and that raises the question of whether they've created the mystery themselves. They seem to focus on Einstein's 60 year old discussion of this topic. They debunk his logic experimentally, and then conclude that they are therefore correct in their logic. It just doesn't follow.
Of course, the reason why they focus on Einstein's logic is that none of them has the cajones to take up where Einstein left off, and make the case against "quantum weirdness." In order to do that, you've got to have a competing theory, and these guys tend to be focused on experimental physics rather than theoretical physics.
Nothing much is going to happen to advance the field of quantum physics, I don't think, until some brilliant theoretical physicist is able to come to a theory that explains what matter is. Right now, they don't even know what "spin" is, so how on earth can they make these sweeping claims about a "cat state" without even knowing what it means?
Umm...do you know much about academia?
These guys have their conclusions challenged, often vociferously and viciously, by other scientists in the field, on a routine basis.
I think they do it just to get chix...