I’m a climber and while yes, the gear is very well made and over engineered climbing is still quite dangerous. That rope could be rated for 500KN but if you repel off the end of it you’re still going for a fall.

I don't think it's the ropes that are used that make climbing dangerous...

I had a huge carabiner holding a free climbing rope fail on me at my local climbing gym. Dumped me at least 15’ and I broke my foot. Definitely a weird one off but it’s not always the rope that fails.