Apache redirect sample code update

I'm not sure if I missed something in the configuration of this module, but I had update the sample Apache redirect rule to include Drupal specific url's from NOT adding the trailing slash because otherwise visiting a Drupal specific url resulted in a never ending redirect loop since Drupal removes trailing slashes by default. Here is the code I had to implement.

RewriteBase /
  RewriteCond %{REQUEST_METHOD} !=post [NC]
  RewriteCond %{REQUEST_URI} !^/admin/
  RewriteCond %{REQUEST_URI} !^/user/
  RewriteCond %{REQUEST_URI} !^/node/
  RewriteCond %{REQUEST_URI} !^/batch
  RewriteRule ^(.*(?:^|/)[^/\.]+)$ $1/ [L,R=301]

Is this normal or did I missing something in the configuration?