No warning of outdated PHP version

Accidentally I noticed my hosting was using PHP 5.3 – end of life. I have upgraded to 5.6 now, but I noticed there was no warning from this plugin. You want to be the best security plugin for wordpress, yet such essential feature, as warning about non-supported PHP version is missing.

What do you think about adding it to future versions?

https://wordpress.org/plugins/all-in-one-wp-security-and-firewall/