One problem is conducting the visual segment
My apologies for failing to notice there is indeed a PAPI at the runway. Why it didn't provide the essential vertical path cues, I don't understand.
ILS, LOC, NBD, RNP AR etc, may have their contribution, no doubt. But if there is a visual segment - an MDA, DA/DH - then the pilot still has to land visually.
I won't try to conclude what exactly went wrong - but it has to do with flying the visual segment - or choosing not to and going around. I am afraid that except for autoland, the safety of the instrument approach absolutely depends on this point.
Challenging wind conditions, lousy visibility conditions, no doubt. You still must have ALL the criteria met for descent and operation below the decision altitude.