Thank you. It is an important question and consideration.
When assessment of productivity is so much about quantity, we get to the challenge of peer review fatigue. There is such a high volume of publications that have to be distributed among the relevant experts in order to get work published in an increasing number of journals. That has been spiralling in a way that is somewhat unsustainable.
The San Francisco declaration is trying to move us away from productivity in terms of volume and more toward productivity in terms of quality. We hope that, indeed, we might see a bit of a recalibrating of the effort required of peers to evaluate each other's work so that it isn't always a race to publish more, but to publish in a smarter way.
A narrative CV is no longer an invitation to have pages and pages that list hundreds and hundreds of publications—in the case of very prolific scientists at the end of their career. If we ask those very scientists to select half a dozen of their most important works, suddenly we may see not as great a race toward more publications, and a less burdensome load on peers to evaluate each other's work for the sake of getting it published.