Although that course might have been easy, def don't underestimate a maxed out BN course with technical turns and terrian.
Hmmmm. I have never seen a difficult BN course. Since BN is supposed to be fluid, simple, strait forward, relaxing - Maxed out and technical terrain and turns sorta goes against what USEF wants for beginner eventers.
BN is entirely meant to be welcoming for horses new to the sport, and riders.
You should beable to trot a whole BN course.
Interesting. Never heard of it.