Keywords mermaids

According to the keywords guide (https://help.imdb.com/article/contribution/titles/keywords/GXQ22G5Y72TH8MJ5?ref_=helpms_helpart_inline#), a keyword should never be plural. Therefore, can a staffer merge the existing occurrences of the keyword mermaids (https://www.imdb.com/search/title/?keywords=mermaids&explore=keywords) into the proper keyword mermaid (https://www.imdb.com/search/title/?keywords=mermaid&explore=keywords) and after that, block and/or re-route 'mermaids' please?