The track wasn’t dangerous, it was the folk not being able to ride it.
You need to remember that we’re talking about a race course not a trail park and primary consideration needs to be given to maintaining uninterrupted flow for a large number of riders (ie avoiding bottlenecks) rather than opportunities for individuals to develop their riding skills.
I thought the course was a well balanced mix of many types of riding, hills, singletrack, spinny bits but the decision to send the route across the stream with the subsequent erosion and swamp that developed after it, doesn’t seem like the the actions of an experienced race course builder.
Personally I preferred last year’s course as it got the biggest climb out of the way early on.