I understand that people are still eaten by crocs, but that is where there are millions of people and someone makes an occasional mistake. It's a one out of millions risk. I am talking about early hominids, traveling in small bands. If they see someone eaten at a water source, they were hopefully smart enough to stay away from that source. We have two legs for a reason. Crocs require a certain size water hole, and we don't have to use those water holes. That humans are still here is an indication that we were smart enough to avoid crocs, in spite of what this writer thinks.
Other predators could not be avoided, they would find you. Tigers, cave lions, african lions, bears, hyenas, wolves, etc. Nothing we can do about them except band together and fight and lose the occasional family member. But others are more easily avoided by having half a brain, and that is what we probably had back then.
I've seen Animal Planet programs that show crocs living in any old mud hole they can find, especially if it is the only mudhole in the area and local fauna have to come down to drink there.
We are talking a region that has frequent droughts, and water holes can be few and far between.