We already continue to ship EAP modules as EAP does not cover the complete functionality (queries counter locks).
So the 'Important' box is slightly incorrect.

https://access.redhat.com/documentation/en-us/red_hat_data_grid/8.3/html-single/data_grid_developer_guide/index#ispn_modules

Modules might be needed if the application needs queries (even embedded or remote)

// Current text:

In Red Hat JBoss EAP (EAP) 7.4 applications can directly handle the infinispan subsystem without the need to separately install Data Grid modules. After EAP 7.4 GA is released, Data Grid will no longer provide EAP modules for download.

// Revised text:

In Red Hat JBoss EAP (EAP) 7.4 applications can directly handle the infinispan subsystem without the need to separately install Data Grid modules. However your deployment require the EAP modules to use advanced capabilities such as indexing and querying.