I must admit I, too, was expecting another fluffy "just do it" article, but I was surprised to find that this is not one of those.
Rather, they are saying: "If you think about about the concrete, specific steps to doing a task, you will be much more likely to complete it than if you think about the task in general -- and we've done the research to prove it."
This is much better than other procrastination articles, which are generally speculative punditry and attempts to copy well-known successful people.
Indeed, I commented it myself a few days ago.
'Distraction from distraction' is my take - don't worry about everything else in your head, just open notepad and start making notes on whatever it is you're trying to put off. You'll forget the rest soon enough :)
The analogy of going ahead and just doing it has been reiterated many times here - in comments/other articles.
proof of or the lack of - doesn't matter.
For some lazy few like me, these readings come in various flavours. Reading these nudges as a reminder to "just do it" and it works for a while atleast - before some distraction comes by.