This is mostly speculation of course, but I hope not entirely uniformed speculation. Perhaps someone from Broadcom could shed some light on this topic, to give us a better idea of the justification for the v12.3 changes, but also the future direction. This would help us plan for what's coming. We don't want to spend a lot of time and energy forcing the product to work in a way in which it's no longer designed to work, and we also don't want to invest effort in an approach that will be made obsolete or incompatible by a forthcoming release.
Yes, the recommended order is described in the documentation:
https://docs.automic.com/documentation/webhelp/english/AA/12.3/DOCU/12.3/Automic%20Automation%20Guides/help.htm#AWA/Admin/admin_start_end_server_processes .htm # link1
but these names have almost zero impact on the names assigned when the AE starts up. This state of affairs seems rather silly.