Change Login URL doesnt hide wp-admin

Hi, I’m just comparing your plugin to other options and compared your Change Login URL facitlity to the WPS Hide Login pluigin. Am I correct in thinking that your plugin DOES NOT hide/prevent acccess to the wp-admin pages, but rather only changes the url of wp-login.php? If so can I ask why not? To my knowledge, blocking traffic to both wp-admin and wp-login pages is usually considered best security practice. Any help appreciated.