It was only 4.5 miles from Dromin Junction, with no intermediate station to generate passenger revenue. In the later days of the Loughrea line, more people drove to Woodlawn or Ballinasloe to get the train to Galway or Dublin than travelled on the line. It is likely that more people went even on foot to Dromin, with more trains there to choose from - plus a lower fare than if they went all the way on the train. Every penny counted in those days to most people.
I wonder if Ardee had been twice or three times the distance from the main line, would the passenger service have survived?
Edenderry was another. Quite big town, but no passenger train since the early 1930s, and even a modest enough amount of goods given its size, in later years.
Same with Moate. In its later years it only had one train each way stopping there, and even that in late evening; light years beyond utterly useless as anything approaching a public service - but Athlone station was (and is) just up the road.
I daresay the majority of people travelling by rail from Tipperary town today just hop in the car up to Limerick Junction which is only 3 miles away, where you have an hourly service, compared to the L Jct - Waterford route which seems to have two trains per decade, provided there's a good wind and they can find a driver.