On the WoTR CE page, it now "Reimplements" WoTR, therefore is ineligible for inclusion in the rankings. There was a forum post about this somewhere but I can't find it now.
"Reimplements" isn't what removes it from the rankings. It's the "Compilation Item" status that removes it from the rankings.
Compilation items are products that contain two or more other products. So, WotR: CE contains both WotR and Battles of the third age, and Puerto Rico 10th Ann. contains Puerto Rico plus a bunch of expansions.