The WordPress block directory enables users to install single-block plugins directly from the inserter interface, automatically downloading and activating plugins when blocks are selected.
This integration can introduce unvetted code, inconsistent design elements, and unexpected functionality changes without proper review processes. Clients may inadvertently install plugins that conflict with your theme or security policies.
Block directory plugins bypass traditional plugin review and installation workflows, making it difficult to maintain controlled WordPress environments for client projects.
Understanding this automatic installation behavior helps explain why many developers disable this feature in professional WordPress implementations.