Isn't index path definition is wrong for index "/oak:index/cqTagLucene" in AEM



In AEM , if we create any tags all will be store in path "/etc/tags" then why cqTagLucene index path doesn't have includepath "/etc/tags" instead of excludepath .
Current cqTagLucene traversing for entire repository thats i think wrong , cqTagLucene  target node for index type is cq:Tag thats stored only in "/etc/tags" .

It can be fix or let me know is there any AEM design structure , that forcing for index definition "excludepath" not "includepath"