The wp-admin path can only be accessed if you are logged in as admin. It’s not visible to visitors or hacker bots.
The PRO version is hiding all the paths from the plugins and themes and the common paths.
Even if some plugins are adding code in HTML and some WP detectors are looking for this code in order to tell you that you are using WordPress, the hacker bots are using Brute Force and Script Injection to break the plugins with their known paths.
Having the wp-admin path visible when you’re logged to your website it will prevent crashing your website if you deactivate the plugin or if another plugin uses the old admin path in the backend.