I personally agree. But I've also seen quite a few parents who use ipads as nannies, so it also wouldn't surprise me if it were accurate.
I've come around to the screen-free childhood plan, but most people who I know that have implemented it are affluent enough to have a stay-at-home parent or a high quality daycare.
Not using screens as a babysitter requires a significant amount of a parent's time and energy, so I also won't condemn any parents who use that strategy.