They cite grsec, that guy is a notorious troll. I’ve seen customers apply their patches thoughtlessly, on bad advice, and bring down production systems. Linux security isn’t perfect (if it was I would be unemployed) but a lot of those problems are solved on properly configured modern systems.
That’s funny, I dislike Ruby for probably the same reasons you like it. I don’t want a language that’s clever or elegant, I want it to do exactly what I say and nothing else. Lower level just makes more sense to me, I’d be a shit & unproductive software engineer.