I'd say it's an "Okay" read. There appear to be a couple technical/conceptual problems. I know that sounds a little "over the top" or "picky" but I'm a technical editor in my professional society so every academic article gets viewed with a bit of jaundiced eye.
I suggest that the failure line doesn't move on the risk/time plot. The decision maker's behavior is what has moved.
Also, the statement that "Experienced airline pilots operate in an environment that is effectively free of failure," is fundamentally flawed. As noted later in the paper, failures (which I'll call minor failures) tend to be ignored (or otherwise neglected) as long as there is no major failure. It's sort of like saying that if the outcome is okay then everything is okay.
Anyway, I think many of us either like to or have to study accident prevention so this paper is a good read from that point of view. Maybe it gives a bit more insight on recognizing accident prone behavior. It'd be nice if the next researcher is able to build on this paper and give us some solid guidance on training and performance monitoring.