This modules restricts more than just the full "view" page of a node

The access control restriction used by this module actually affects more than just the node "view" page. The hook_node_access hook is invoked whenever entity view access is requested, which happens on more than just node "view" page. For example, when a node is being rendered in a the "teaser" view mode via some entity reference field.

Unfortunately there's really no way around this because entity access checks are not passed the view mode an entity is being rendered in. They are just passed an "operation" (which can be view, view label, create, edit, or delete). So the node access check hooks do not have the context a node is being viewed in when determining proper access.

I just think you may want to point this out on the project page.