Buried a little deeper in the article is the real issue: scientists are rewarded for getting good results published, so there is no incentive to reproduce their work, especially if the paper is kind of a "one-off" set of studies.
Most scientists are short on time and short on money, and virtually all of their career success is linked to high-impact publications and successful grant applications. Reproducing work from successful studies won't really help you get either, so it's far more rewarding to move on to the next paper, especially in a competitive field where many groups are "racing" to the next milestone.
Some prominent researchers are lucky to reach a point in their careers where they can afford to slow down and check things, particularly when they are a big name with tons of finding and an army of grad students / post docs. But what about that young investigator who has spent 10-15 years working towards tenure? Retracting a Science article could literally sink their entire career, so not only is there no incentive to reproduce that work, there is actually every motivation to file it away and move on.
A lot of the reproducibility issues come to light when technologies move past the research stage and begin development. But for most academics, that is never even on their radar for their entire career.