I don't even track yet and my mouth dropped. Seeing things like that doesn't make it appealing for people new to track
Put in as little time in intermediate as possible, that's my advice. Get your techniques and your skills down pat in Novice, work on your smoothness above all and then move through Intermediate as quick as you can... or change the type of track days you do. I fully realise that not everyone will feel comfortable at an advanced pace but you don't see many crashes in those groups, and if you do they tend to be lowsides.
Intermediate can be a scary place to ride, you get advanced riders with good attention to skills but little experience, mixed with experienced riders with little ambition, and new riders with talent that are too fast to be in Novice but have too little experience to be confident of their actions - like the fellow that brake checked the other riders without warning. And of course, permutations of all of those. In any case, you'll want to pay close attention for sudden panic decisions in that rider group.
Also, while I'm on my soapbox, almost always try to make the corner, because at best you find that you make it and at worse, you lowside at a lower speed; closer to the ground. And forget what the other guy is doing. I estimate that 3/4 of the crashes I hear about on the street or track can be avoided with this advice, so I give it out often.
Last time I went in Intermediate (on my street bike, so I could spend some track time with local friends), I was right behind a fellow on a R1 who failed to do both because he was more concerned with what I was doing than what he was doing - he told me about it later in the pits when I sought him out to see if he was OK. I have it on video somewhere, you can see he's going to do it long before it happens and I backed off so he might not hear me and take the corner... but no.