License terms on Multisite subfolder setup

Hi everyone,

When you are running a multisite wordpress using subfolder setup like mydomain.com/sit1, mydomain.com/sit2 etc, you only install the theme or plugin once on one domain. Now if the themes or plugins installed are used by administrators of subfolder sites at no cost to them for doing so, will it be a violation of the regular licence?

If so then from Envato, kindly assist with clarity on how that is so if the installation is done only once on a single domain and users on the domain are not charged for using the theme or plugin on their sites.