I like the scoreless review but i do not think a company should impose said limits but if Konami said "Can you not give it scores but rather just a review" then i see no problem.
Mil. Sellers:
Wii: 25 titles 101.4 mil total avg 4 mil per title
PS3: 14 titles 28.6 mil total avg ~2 mil per title
360: 41 titles 89.8 mil total avg >2 mil per title