I've seen it both ways, and I'm not convinced that human presence is always the culprit. Obviously it can be, but I hunted swamp land in Lowndes County, with 20 other hunters and more coyotes than I ever seen anywhere. Those deer would stand 30 yards away and watch you climb a tree. We used to joke about how Mello they were, and even wondered if they was grazing on someone's local pot stash.
Then I've hunted another place with only two or three hunters, and often nobody on the property for weeks at a time, no cameras, no atvs and still the deer would act completely paranoid. If you even seen one, in the daylight, buck or doe, they was on ultra high alert and spooked at any movement or noise.
Thats totally opposite behavior, from deer herds that are less than 50 miles apart, but two examples that I've seen personally.