the ```node['environment_users']['users']`` is setting the value for ```node['user']['user_array_node_attr']``` which is built into the chef-user cookbook that we are leveraging.  I could probably do the user add, just like I am doing the remove (looping through each user) but the end result would be the same. I just want clarification that is what you want me to do.

The documentation for that cookbook says:
user_array_node_attr

The node attributes containing an array of users to be managed. If a nested hash in the node's attributes is required, then use a / between subhashes. For example, if the users' array is stored in node['system']['accounts']), then set node['user']['user_array_node_attr'] to "system/accounts".

The default is "users".