Amazing horror, spoiled by a single big plothole

Rating: 7/10 (20 March 2019)

This was one of the best horror movies I have seen in a long time. The horror and suspense you feel are not from jump scares, which makes it so awesome. The acting is great and the story something fresh and exciting.
However, what got stuck with me even days after watching it was not the creepiness and horror, but being puzzled about one giant plothole:
The death of Charlie.
For Charlie to die was a vital and important point in the plot and for the cult. The cult is pretty good at manipulating and orchestrating their plot from the shadows, but orchestrating Charlies death was really a long shot for them that could have gone different in so many ways and it just doesn't sit well with me that it happened just like they wanted it to. A lot of things they couldn't influence had to go right for this.
1. Annie had to send Charlie to this party
2. Charlie had to eat nuts
3. Peter had to evade the deer to the right, not to the left
4. Peter also just had to come close enough to the pole for the head to be ripped off but not drive into it and end up in a fatal crash
I can see how point 1 and 2 could be arranged by manipulating some people in the surroundings, but 3 and 4 would really be out of their control and they would really have to keep their fingers crossed for that to happen as they would like it to. And that's what spoiled the movie a bit for me, I just don't buy that part.