Based on your description and account of the hunt, my first inclination would be to say yes, that place most likely gets heavily hunted. Certainly, there may be other factors that might account for the circumstances you encountered, but if I was a betting man, I would say human harvest would be high on my list of causes of what you experienced.
I saw the same thing just a few weeks ago on a property that I hunted for the first time. I knew going in that it appeared to me that too many hunters were being allowed to hunt the area and that was pretty much confirmed by the absence of mature gobblers as compared to the numbers of hens.
For example, I saw a flock of forty hens that did not have a single gobbler or jake with them. Saw another flock half that size with the same thing,...no gobblers, no jakes. This was during the height of the breeding season where there is no way those flocks should not have had gobblers present.
Conversely, I hunted another property with similar habitat and circumstances, but with much less, and controlled, hunting pressure, and the number of gobblers was very high in relationship to the numbers of hens.
