[rudolf0]

That's not what he was saying. Yes, it would of course be a good idea to try to hide the malware implants from tools like Little Snitch. It's just that the method they propose of going about it is really dumb.

What tptacek is saying is that instead of writing some hand-tailored userspace code to specifically fool Little Snitch, they should just be using a kernel module that will hide the network and process activity from all analysis tools. That's what most nation-state malware does (or tries to do).