By the same approach I mean insisting that moving too early would be as dangerous as moving too late. They've made the exact same arguments we've heard from the UK about the need to time measures appropriately, as opposed to arguing for early intervention as some had.
And the Irish have repeatedly stressed that they're directly following the advice of ECDC & WHO on when they enact different measures, so it's not like they're out of step with (what I assume is) the mainstream approach.
Now as I say, it may just be that the situation in the two countries is different. Ireland are slighty ahead in terms of cases per million, have a younger population, fewer centres of population density, a health service with different relative capacity, etc. It might be that there are various factors that alter the timing of measures as per the modelling being used. It's just interesting to speculate what exactly is prompting this divergent approach.