That is not good, so you have no solution (supported or not) available for a non MSCS environment
I would expect it to function the same way and be able to use the existing xos scripts (if not slightly modified) to work with the non-CA branded Arcserve - it's function is to provide replication and high availability for any third-party application.
I get what you are saying that CA would not support it directly as CA no longer owns Arcserve, but surely you would recommend or endorse it as a solution ????