Eu estive aqui:Como excluir um arquivo específico no htaccess

e aqui:excluir arquivos da regra de reescrita no .htaccess

mas nem funcionou. O que eu posso estar fazendo errado?

arquivo .htaccess:

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule ^wp-content(/.*|)$ - [L] # don't take any action
RewriteRule ^wp-admin(/.*|)$ - [L] # don't take any action
RewriteRule ^wp-includes(/.*|)$ - [L] # don't take any action
RewriteCond %{REQUEST_URI} !^/pureplantessentials\.html$

RewriteRule ^moreinfo/(.*)$ http://www.kgstiles.com/moreinfo$1 [R=301]
RewriteRule ^healthsolutions/(.*)$ http://www.kgstiles.com/healthsolutions$1 [R=301]
RewriteRule ^(.*)\.html$ $1/ [R=301]
RewriteRule ^(.*)\.htm$ $1/ [R=301]
</IfModule>