That is how all of these tools are. I have always told people that third-party virus scanners are just viruses that we are ok with having. They slow down our computers, reduce our security, many of them have keyloggers in them (to detect other keyloggers). We just trust them more than we trust unknown ones so we give it over to them.

CloudStrike is a little broader of course. But yeah, its a rootkit that we trust to protect us from other rootkits. Its like fighting fire with fire.