In a typical accounting team I work with it is the accountants who invoice purchase orders and post invoice journal, cash adjustments and other transactions impacting sub-ledgers - and in the vast majority of cases they would check immediately if the GL impact of the posting looks correct, especially when they are doing something which is a bit out of the ordinary.
In fact, in many teams the "best practice" recommendation we give is to quickly check the voucher immediately after posting - if there is an issue, we prefer to discover it quickly and address it, and not wait to month end where there might be lots of transactions that needs correction.
I can imagine this is much less important in operational modules when people do receiving, registration, inventory adjustments etc.
I always consider the synch option to be one of D365 competitive advantages. Before D365 / AX I worked with another ERP which posted through batches - and the delays were making the work experience much more cumbersome as there was never immediately feedback to posting.
IF there were errors preventing posting you would only learn about them much later by browsing logs, and then fixing became difficult.
