So an inexperienced pilot is going to set up a GPS approach on a random moving target.
I don’t think any one said that.
What actually happens is HNZ’s very experienced two crew ops will select the published RNAV approach to Seabouy, and hold until the timing is accurate for them to commence the approach and meet the vessel at the missed approach point.
No one mentioned inexperienced pilots or random moving targets but you, and nothing could be further from the truth.