...add to that:
Who even knows that a connection is possible at Ballybrophy for a railway line to Limerick via Nenagh? I've been on both an ICR and MK4 set, both heading to Dublin and heading to Cork that stopped at Ballybrophy. Both services were the trains that connect with Limerick (via Nenagh) bound services.
The automated announcement on mainline trains just informed passengers the next station was Ballybrophy. Not one mention of "change here for Roscrea, Cloughjordan, ....". The same could be said for Limerick Junction: I've never heard any announcement for "change here for Tipperary, Cahir, Clonmel...". Likewise, apparently no station exists north of Ennis on the automated announcements.
I would imagine to the majority of mainline users, Ballybrophy is just another standard stop on the Cork mainline.