Until showed otherwise, the latest information on this thread is that A321 does not meet the standard RLD at JSI.
Does not change the fact that correct landing is to be achieved with 3 deg profile and having RA call 30 over the numbers.
Stll think it was not showboating but a crew who scared themselves out of competence for the moment. And not trained well for a complex scenario such as the one over there, not overly demanding, just complex.