I see some differences. The Helge Ingstad accident unfolded in a relatively short amount of time, and had a lot of moving parts. Through some evil quirk of attention channeling, several key players dropped the ball at the same time, and the holes in the cheese lined up. They very much failed to follow established process, the watch officer by failing to cross check sources when it was called for, the VTS operator by failing to track the radar target.
I don’t quite know what to make of the Viking Sky. I think @camjournal has a good point here:
It’s also going to be about this:
It’s clear that they somehow failed to see, and I’ll be interested to read more about that when the report comes out.