Alternative links for Facebook sources are now supported in our Facebook Reviews and All-in-One Reviews 
This enhancement comes into play when the source is provided in the format of https://www.facebook.com/p/{SOME-COMPANY-NAME}-{NUMERIC-ID} or https://www.facebook.com/people/{SOME-COMPANY-NAME}/{NUMERIC-ID}
Clicking the Write a Review button for these sources will now take you to the Reviews page without requiring a Facebook login.