Hi
One of the reason I can think of that there is no concept of totals tables in S/4 HANA Finance. Even the totals are fetched from ACDOCA, whether you look at a balance sheet or trial balance or for that matter period wise vendor or customer balances. So essentially, system does not have to look at different places for totals and line items seperately, so why would you need to differentiate it. You only have to check on the status for open item which becomes relevants since all the data is fetched from ACDOCA.
Hope that clarifies
Regards
Sanil Bhandari