A botched run that got intercepted off the Irish coast a few years back, showed that the "hard" stuff comes in by the ton, regardless of what it says on a piece of paper (regardless of what a politician's "law" says). The muppets in Leinster house know that - if they don't, then they are even bigger fools than I thought they were.
The only practical effect of this panic session of their two ring circus, is to make sure that anyone who wants the shit in Ireland, can only buy it from a criminal, rather than as a brand name product from a reputable business.
Unless they use one of the many sites that popped up when the Silk Road was taken down... and the politicians can do feck all about that.