It could be very nice and effective to have some kind of icon/text/number/percent in the list of posts and pages that indicates the content item's SEO setup's readiness.
I used to use the All in One SEO, and switched to WPSEO some weeks ago. Have 200+ content items, the SEO fine-tune is not a one day process, so I go trought it by useing the WMT to know the most important changes to do.
In this way I can not know what items were already tuned, and what items not.
Additionally, I feel that You do force users to take time to make good copy and Meta texts. This is thay good way. You may force it a bit better if indicate the not perfect status in the list view too!