Hi & thanks for your kind review!
Regarding the redirection message - I've seen 2 possible causes for the message not showing up:
1) Your template may not have proper links to the system css files. If this is the case, your joomla site will not show any system messages.
Go to joomlaroot/templates/YOUR ACTIVE TEMPLATE/index.php and see if the following links are present (usually near the top of the file):
/templates/system/css/system.css" type="text/css" />
/templates/system/css/general.css" type="text/css" />
2)If the system cache plugin is enabled, joomla may show a stale page that does not include the redirect message. To fix this, enable the plugin parameter that clears the page cache on login failures.