The problem with this statement is that there will be a point of diminishing returns. The learning curve will never continue exponentially upward. While we are all indeed still learning, no matter our experience level, an individual can only be so good, and only retain so much knowledge.

One way to look at this is to put a whole bunch of pilots on paper, in a line-up in order of experience (hours) relative to a particular operation. For this case, let's say a flight from A to B in your typical regional jet. Would you put your wife and kids on the plane with a captain who just upgraded at ATP mins and the FO has 600 TT, or would you pick the most experienced people to fly your family? (if you fit in either of those categories, don't take this personally)